51656050516 has 12 divisors (see below), whose sum is σ = 103312101088. Its totient is φ = 22138307352.

The previous prime is 51656050471. The next prime is 51656050529. The reversal of 51656050516 is 61505065615.

51656050516 is an admirable number.

It is a congruent number.

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, 922429446 + ... + 922429501.

Almost surely, 2^51656050516 is an apocalyptic number.

It is an amenable number.

51656050516 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51656050516 is a wasteful number, since it uses less digits than its factorization.

51656050516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844858958 (or 1844858956 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 51656050516 in words is "fifty-one billion, six hundred fifty-six million, fifty thousand, five hundred sixteen".