102664171642 has 16 divisors (see below), whose sum is σ = 154218974400. Its totient is φ = 51257888640.

The previous prime is 102664171637. The next prime is 102664171661. The reversal of 102664171642 is 246171466201.

It is a junction number, because it is equal to n+sod(n) for n = 102664171595 and 102664171604.

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, 6169209 + ... + 6185827.

It is an arithmetic number, because the mean of its divisors is an integer number (9638685900).

Almost surely, 2^102664171642 is an apocalyptic number.

102664171642 is a deficient number, since it is larger than the sum of its proper divisors (51554802758).

102664171642 is a wasteful number, since it uses less digits than its factorization.

102664171642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20901.

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 102664171642 in words is "one hundred two billion, six hundred sixty-four million, one hundred seventy-one thousand, six hundred forty-two".