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55816750080 = 2103557131729
BaseRepresentation
bin110011111110111100…
…000000010000000000
312100001222001200200000
4303332330000100000
51403303042000310
641350350400000
74014122355540
oct637674002000
9170058050600
1055816750080
1121743111523
12a998b00000
135356b97590
1429b707b320
1516ba3814c0
hexcfef00400

55816750080 has 2112 divisors, whose sum is σ = 270384791040. Its totient is φ = 10701766656.

The previous prime is 55816750043. The next prime is 55816750103. The reversal of 55816750080 is 8005761855.

55816750080 is a `hidden beast` number, since 5 + 5 + 8 + 1 + 67 + 500 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1924715506 + ... + 1924715534.

Almost surely, 255816750080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55816750080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135192395520).

55816750080 is an abundant number, since it is smaller than the sum of its proper divisors (214568040960).

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

55816750080 is a wasteful number, since it uses less digits than its factorization.

55816750080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 45.

The spelling of 55816750080 in words is "fifty-five billion, eight hundred sixteen million, seven hundred fifty thousand, eighty".