126432633896 has 16 divisors (see below), whose sum is σ = 237065185140. Its totient is φ = 63215251200.

The previous prime is 126432633871. The next prime is 126432633961. The reversal of 126432633896 is 698336234621.

It can be written as a sum of positive squares in 2 ways, for example, as 123351273796 + 3081360100 = 351214^2 + 55510^2 .

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 624446 + ... + 801746.

Almost surely, 2^126432633896 is an apocalyptic number.

It is an amenable number.

126432633896 is a deficient number, since it is larger than the sum of its proper divisors (110632551244).

126432633896 is a wasteful number, since it uses less digits than its factorization.

126432633896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266444 (or 266440 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 53.

The spelling of 126432633896 in words is "one hundred twenty-six billion, four hundred thirty-two million, six hundred thirty-three thousand, eight hundred ninety-six".