51167752163 has 16 divisors (see below), whose sum is σ = 57791599200. Its totient is φ = 44875246080.

The previous prime is 51167752159. The next prime is 51167752193. The reversal of 51167752163 is 36125776115.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 51167752163 - 2² = 51167752159 is a prime.

It is a super-2 number, since 2×51167752163² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51167752133) 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, 326795 + ... + 457307.

It is an arithmetic number, because the mean of its divisors is an integer number (3611974950).

Almost surely, 2^51167752163 is an apocalyptic number.

51167752163 is a deficient number, since it is larger than the sum of its proper divisors (6623847037).

51167752163 is a wasteful number, since it uses less digits than its factorization.

51167752163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131782.

The product of its digits is 264600, while the sum is 44.

The spelling of 51167752163 in words is "fifty-one billion, one hundred sixty-seven million, seven hundred fifty-two thousand, one hundred sixty-three".