51701664657053 has 16 divisors (see below), whose sum is σ = 54406058054400. Its totient is φ = 49059178311360.

The previous prime is 51701664657037. The next prime is 51701664657067. The reversal of 51701664657053 is 35075646610715.

It is not a de Polignac number, because 51701664657053 - 2⁴ = 51701664657037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51701664657053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51701664657553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2000108 + ... + 10363578.

It is an arithmetic number, because the mean of its divisors is an integer number (3400378628400).

Almost surely, 2^{51701664657053} is an apocalyptic number.

It is an amenable number.

51701664657053 is a deficient number, since it is larger than the sum of its proper divisors (2704393397347).

51701664657053 is a wasteful number, since it uses less digits than its factorization.

51701664657053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8367172.

The product of its (nonzero) digits is 15876000, while the sum is 56.

The spelling of 51701664657053 in words is "fifty-one trillion, seven hundred one billion, six hundred sixty-four million, six hundred fifty-seven thousand, fifty-three".