51133310668 has 48 divisors (see below), whose sum is σ = 103658776704. Its totient is φ = 21812061440.

The previous prime is 51133310639. The next prime is 51133310681. The reversal of 51133310668 is 86601333115.

It is a super-2 number, since 2×51133310668² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161055 + ... + 358057.

It is an arithmetic number, because the mean of its divisors is an integer number (2159557848).

Almost surely, 2^51133310668 is an apocalyptic number.

It is an amenable number.

51133310668 is an abundant number, since it is smaller than the sum of its proper divisors (52525466036).

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

51133310668 is a wasteful number, since it uses less digits than its factorization.

51133310668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197382 (or 197380 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 51133310668 in words is "fifty-one billion, one hundred thirty-three million, three hundred ten thousand, six hundred sixty-eight".