102645580902 has 16 divisors (see below), whose sum is σ = 206150123520. Its totient is φ = 34072033352.

The previous prime is 102645580871. The next prime is 102645580927. The reversal of 102645580902 is 209085546201.

It is a super-2 number, since 2×102645580902² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 35788518 + ... + 35791385.

It is an arithmetic number, because the mean of its divisors is an integer number (12884382720).

Almost surely, 2^102645580902 is an apocalyptic number.

102645580902 is an abundant number, since it is smaller than the sum of its proper divisors (103504542618).

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

102645580902 is a wasteful number, since it uses less digits than its factorization.

102645580902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71580147.

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 102645580902 in words is "one hundred two billion, six hundred forty-five million, five hundred eighty thousand, nine hundred two".