123058157656 has 16 divisors (see below), whose sum is σ = 263696052240. Its totient is φ = 52739210400.

The previous prime is 123058157623. The next prime is 123058157683. The reversal of 123058157656 is 656751850321.

123058157656 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 1098733495 + ... + 1098733606.

It is an arithmetic number, because the mean of its divisors is an integer number (16481003265).

Almost surely, 2^123058157656 is an apocalyptic number.

It is an amenable number.

123058157656 is an abundant number, since it is smaller than the sum of its proper divisors (140637894584).

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

123058157656 is a wasteful number, since it uses less digits than its factorization.

123058157656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197467114 (or 2197467110 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 49.

The spelling of 123058157656 in words is "one hundred twenty-three billion, fifty-eight million, one hundred fifty-seven thousand, six hundred fifty-six".