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660100248080 = 245713192943289
BaseRepresentation
bin10011001101100010000…
…10100111001000010000
32100002211112001222202022
421212301002213020100
541303341130414310
61223125035111012
765455620350120
oct11466102471020
92302745058668
10660100248080
11234a46421509
12a7b222a2468
134a32a0b7090
1423d40190c80
15122862c3a55
hex99b10a7210

660100248080 has 960 divisors, whose sum is σ = 2129488704000. Its totient is φ = 184549736448.

The previous prime is 660100248029. The next prime is 660100248127. The reversal of 660100248080 is 80842001066.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 660100248080.

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, 7416856676 + ... + 7416856764.

It is an arithmetic number, because the mean of its divisors is an integer number (2218217400).

Almost surely, 2660100248080 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 660100248080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1064744352000).

660100248080 is an abundant number, since it is smaller than the sum of its proper divisors (1469388455920).

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

660100248080 is a wasteful number, since it uses less digits than its factorization.

660100248080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The spelling of 660100248080 in words is "six hundred sixty billion, one hundred million, two hundred forty-eight thousand, eighty".