126636362556 has 24 divisors (see below), whose sum is σ = 322347105024. Its totient is φ = 38374655280.

The previous prime is 126636362537. The next prime is 126636362563. The reversal of 126636362556 is 655263636621.

It is a junction number, because it is equal to n+sod(n) for n = 126636362499 and 126636362508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479683060 + ... + 479683323.

It is an arithmetic number, because the mean of its divisors is an integer number (13431129376).

Almost surely, 2^126636362556 is an apocalyptic number.

It is an amenable number.

126636362556 is an abundant number, since it is smaller than the sum of its proper divisors (195710742468).

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

126636362556 is a wasteful number, since it uses less digits than its factorization.

126636362556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959366401 (or 959366399 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 51.

The spelling of 126636362556 in words is "one hundred twenty-six billion, six hundred thirty-six million, three hundred sixty-two thousand, five hundred fifty-six".