123556505225682 has 16 divisors (see below), whose sum is σ = 257857054384320. Its totient is φ = 39394827753072.

The previous prime is 123556505225627. The next prime is 123556505225683. The reversal of 123556505225682 is 286522505655321.

It is not an unprimeable number, because it can be changed into a prime (123556505225683) 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, 447668497057 + ... + 447668497332.

It is an arithmetic number, because the mean of its divisors is an integer number (16116065899020).

Almost surely, 2^{123556505225682} is an apocalyptic number.

123556505225682 is an abundant number, since it is smaller than the sum of its proper divisors (134300549158638).

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

123556505225682 is a wasteful number, since it uses less digits than its factorization.

123556505225682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895336994417.

The product of its (nonzero) digits is 43200000, while the sum is 57.

The spelling of 123556505225682 in words is "one hundred twenty-three trillion, five hundred fifty-six billion, five hundred five million, two hundred twenty-five thousand, six hundred eighty-two".