126136662720 has 56 divisors (see below), whose sum is σ = 400483907184. Its totient is φ = 33636443136.

The previous prime is 126136662703. The next prime is 126136662731. The reversal of 126136662720 is 27266631621.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65695219 + ... + 65697138.

Almost surely, 2^126136662720 is an apocalyptic number.

126136662720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126136662720 is an abundant number, since it is smaller than the sum of its proper divisors (274347244464).

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

126136662720 is a wasteful number, since it uses less digits than its factorization.

126136662720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131392377 (or 131392367 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 126136662720 in words is "one hundred twenty-six billion, one hundred thirty-six million, six hundred sixty-two thousand, seven hundred twenty".