102510660920 has 32 divisors (see below), whose sum is σ = 232804594800. Its totient is φ = 40621045248.

The previous prime is 102510660913. The next prime is 102510660947. The reversal of 102510660920 is 29066015201.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11971265 + ... + 11979824.

Almost surely, 2^102510660920 is an apocalyptic number.

102510660920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102510660920 is an abundant number, since it is smaller than the sum of its proper divisors (130293933880).

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

102510660920 is a wasteful number, since it uses less digits than its factorization.

102510660920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23951207 (or 23951203 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 102510660920 in words is "one hundred two billion, five hundred ten million, six hundred sixty thousand, nine hundred twenty".