102157517260 has 24 divisors (see below), whose sum is σ = 220328917200. Its totient is φ = 39758601024.

The previous prime is 102157517239. The next prime is 102157517269. The reversal of 102157517260 is 62715751201.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (102157517269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69024610 + ... + 69026089.

It is an arithmetic number, because the mean of its divisors is an integer number (9180371550).

Almost surely, 2^102157517260 is an apocalyptic number.

102157517260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102157517260 is an abundant number, since it is smaller than the sum of its proper divisors (118171399940).

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

102157517260 is a wasteful number, since it uses less digits than its factorization.

102157517260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138050745 (or 138050743 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 37.

The spelling of 102157517260 in words is "one hundred two billion, one hundred fifty-seven million, five hundred seventeen thousand, two hundred sixty".