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6630388894080 = 2733573743131263
BaseRepresentation
bin110000001111100000111…
…1110011000100110000000
3212110212012012110101011000
41200133001332120212000
51332113014024102310
622033543020452000
71253013134463060
oct140370176304600
925425165411130
106630388894080
112126a28749946
128b101b9aa000
13391320b05923
1418ccabdd13a0
15b7711b4c4c0
hex607c1f98980

6630388894080 has 2048 divisors, whose sum is σ = 28526963097600. Its totient is φ = 1423836610560.

The previous prime is 6630388894067. The next prime is 6630388894109. The reversal of 6630388894080 is 804988830366.

6630388894080 is a `hidden beast` number, since 6 + 63 + 0 + 388 + 89 + 40 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 6630388893999 and 6630388894017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 25210604029 + ... + 25210604291.

It is an arithmetic number, because the mean of its divisors is an integer number (13929181200).

Almost surely, 26630388894080 is an apocalyptic number.

6630388894080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6630388894080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14263481548800).

6630388894080 is an abundant number, since it is smaller than the sum of its proper divisors (21896574203520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6630388894080 is a wasteful number, since it uses less digits than its factorization.

6630388894080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 47775744, while the sum is 63.

The spelling of 6630388894080 in words is "six trillion, six hundred thirty billion, three hundred eighty-eight million, eight hundred ninety-four thousand, eighty".