51656150156165 has 16 divisors (see below), whose sum is σ = 62404862876928. Its totient is φ = 41047260220416.

The previous prime is 51656150156131. The next prime is 51656150156291. The reversal of 51656150156165 is 56165105165615.

It is a cyclic number.

It is not a de Polignac number, because 51656150156165 - 2¹⁸ = 51656149894021 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 40743257 + ... + 41991966.

It is an arithmetic number, because the mean of its divisors is an integer number (3900303929808).

Almost surely, 2^{51656150156165} is an apocalyptic number.

It is an amenable number.

51656150156165 is a deficient number, since it is larger than the sum of its proper divisors (10748712720763).

51656150156165 is a wasteful number, since it uses less digits than its factorization.

51656150156165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82736068.

The product of its (nonzero) digits is 4050000, while the sum is 53.

The spelling of 51656150156165 in words is "fifty-one trillion, six hundred fifty-six billion, one hundred fifty million, one hundred fifty-six thousand, one hundred sixty-five".