10102555920 has 80 divisors (see below), whose sum is σ = 31759074432. Its totient is φ = 2656066560.

The previous prime is 10102555919. The next prime is 10102555951. The reversal of 10102555920 is 2955520101.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×10102555920² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279397 + ... + 313476.

Almost surely, 2^10102555920 is an apocalyptic number.

10102555920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10102555920 is an abundant number, since it is smaller than the sum of its proper divisors (21656518512).

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

10102555920 is a wasteful number, since it uses less digits than its factorization.

10102555920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592960 (or 592954 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 10102555920 in words is "ten billion, one hundred two million, five hundred fifty-five thousand, nine hundred twenty".