126599332864 has 33 divisors (see below), whose sum is σ = 253097796207. Its totient is φ = 63293973504.

The previous prime is 126599332859. The next prime is 126599332903. The reversal of 126599332864 is 468233995621.

The square root of 126599332864 is 355808.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126599332799 and 126599332808.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 11380297 + ... + 11391415.

Almost surely, 2^126599332864 is an apocalyptic number.

126599332864 is the 355808-th square number.

It is an amenable number.

126599332864 is a deficient number, since it is larger than the sum of its proper divisors (126498463343).

126599332864 is an frugal number, since it uses more digits than its factorization.

126599332864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22258 (or 11121 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 58.

The spelling of 126599332864 in words is "one hundred twenty-six billion, five hundred ninety-nine million, three hundred thirty-two thousand, eight hundred sixty-four".