102256203485655 has 160 divisors (see below), whose sum is σ = 184663031503104. Its totient is φ = 54133971300864.

The previous prime is 102256203485587. The next prime is 102256203485687. The reversal of 102256203485655 is 556584302652201.

102256203485655 is a `hidden beast` number, since 1 + 0 + 2 + 2 + 5 + 620 + 3 + 4 + 8 + 5 + 6 + 5 + 5 = 666.

It is not a de Polignac number, because 102256203485655 - 2¹¹ = 102256203483607 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 68952260544 + ... + 68952262026.

Almost surely, 2^{102256203485655} is an apocalyptic number.

102256203485655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102256203485655 is a deficient number, since it is larger than the sum of its proper divisors (82406828017449).

102256203485655 is a wasteful number, since it uses less digits than its factorization.

102256203485655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3467 (or 3458 counting only the distinct ones).

The product of its (nonzero) digits is 17280000, while the sum is 54.

The spelling of 102256203485655 in words is "one hundred two trillion, two hundred fifty-six billion, two hundred three million, four hundred eighty-five thousand, six hundred fifty-five".