102159468621 has 64 divisors (see below), whose sum is σ = 180585431040. Its totient is φ = 55808818560.

The previous prime is 102159468583. The next prime is 102159468629. The reversal of 102159468621 is 126864951201.

102159468621 is a `hidden beast` number, since 1 + 0 + 2 + 15 + 9 + 4 + 6 + 8 + 621 = 666.

It is not a de Polignac number, because 102159468621 - 2²² = 102155274317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102159468629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9910356 + ... + 9920658.

It is an arithmetic number, because the mean of its divisors is an integer number (2821647360).

Almost surely, 2^102159468621 is an apocalyptic number.

It is an amenable number.

102159468621 is a deficient number, since it is larger than the sum of its proper divisors (78425962419).

102159468621 is a wasteful number, since it uses less digits than its factorization.

102159468621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12623 (or 12617 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 102159468621 in words is "one hundred two billion, one hundred fifty-nine million, four hundred sixty-eight thousand, six hundred twenty-one".