102655858365258 has 16 divisors (see below), whose sum is σ = 223976418251616. Its totient is φ = 31107835868240.

The previous prime is 102655858365253. The next prime is 102655858365283. The reversal of 102655858365258 is 852563858556201.

It is a super-2 number, since 2×102655858365258² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102655858365192 and 102655858365201.

It is not an unprimeable number, because it can be changed into a prime (102655858365253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 777695896641 + ... + 777695896772.

It is an arithmetic number, because the mean of its divisors is an integer number (13998526140726).

Almost surely, 2^{102655858365258} is an apocalyptic number.

102655858365258 is an abundant number, since it is smaller than the sum of its proper divisors (121320559886358).

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

102655858365258 is a wasteful number, since it uses less digits than its factorization.

102655858365258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555391793429.

The product of its (nonzero) digits is 691200000, while the sum is 69.

The spelling of 102655858365258 in words is "one hundred two trillion, six hundred fifty-five billion, eight hundred fifty-eight million, three hundred sixty-five thousand, two hundred fifty-eight".