102515555555 has 24 divisors (see below), whose sum is σ = 147719594880. Its totient is φ = 68028750720.

The previous prime is 102515555533. The next prime is 102515555561. The reversal of 102515555555 is 555555515201.

It is not a de Polignac number, because 102515555555 - 2⁸ = 102515555299 is a prime.

102515555555 is a modest number, since divided by 555555 gives 102515 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6741290 + ... + 6756479.

It is an arithmetic number, because the mean of its divisors is an integer number (6154983120).

Almost surely, 2^102515555555 is an apocalyptic number.

102515555555 is a deficient number, since it is larger than the sum of its proper divisors (45204039325).

102515555555 is a wasteful number, since it uses less digits than its factorization.

102515555555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13497819 (or 13497812 counting only the distinct ones).

The product of its (nonzero) digits is 781250, while the sum is 44.

The spelling of 102515555555 in words is "one hundred two billion, five hundred fifteen million, five hundred fifty-five thousand, five hundred fifty-five".