123557407596 has 72 divisors (see below), whose sum is σ = 357218511104. Its totient is φ = 35274929760.

The previous prime is 123557407553. The next prime is 123557407621. The reversal of 123557407596 is 695704755321.

It is a happy number.

123557407596 is a `hidden beast` number, since 1 + 2 + 3 + 5 + 5 + 7 + 40 + 7 + 596 = 666.

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, 140211 + ... + 516501.

Almost surely, 2^123557407596 is an apocalyptic number.

It is an amenable number.

123557407596 is an abundant number, since it is smaller than the sum of its proper divisors (233661103508).

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

123557407596 is a wasteful number, since it uses less digits than its factorization.

123557407596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377611 (or 377606 counting only the distinct ones).

The product of its (nonzero) digits is 7938000, while the sum is 54.

The spelling of 123557407596 in words is "one hundred twenty-three billion, five hundred fifty-seven million, four hundred seven thousand, five hundred ninety-six".