51336806668 has 36 divisors (see below), whose sum is σ = 104574388800. Its totient is φ = 21987316512.

The previous prime is 51336806663. The next prime is 51336806693. The reversal of 51336806668 is 86660863315.

51336806668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51336806663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223558 + ... + 390706.

Almost surely, 2^51336806668 is an apocalyptic number.

It is an amenable number.

51336806668 is an abundant number, since it is smaller than the sum of its proper divisors (53237582132).

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

51336806668 is a wasteful number, since it uses less digits than its factorization.

51336806668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168734 (or 168725 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 52.

The spelling of 51336806668 in words is "fifty-one billion, three hundred thirty-six million, eight hundred six thousand, six hundred sixty-eight".