126006657256 has 8 divisors (see below), whose sum is σ = 236262482370. Its totient is φ = 63003328624.

The previous prime is 126006657209. The next prime is 126006657307. The reversal of 126006657256 is 652756600621.

It can be written as a sum of positive squares in only one way, i.e., 79674094756 + 46332562500 = 282266^2 + 215250^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7875416071 + ... + 7875416086.

Almost surely, 2^126006657256 is an apocalyptic number.

It is an amenable number.

126006657256 is a deficient number, since it is larger than the sum of its proper divisors (110255825114).

126006657256 is a wasteful number, since it uses less digits than its factorization.

126006657256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15750832163 (or 15750832159 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 126006657256 in words is "one hundred twenty-six billion, six million, six hundred fifty-seven thousand, two hundred fifty-six".