51136766167 has 4 divisors (see below), whose sum is σ = 51137376760. Its totient is φ = 51136155576.

The previous prime is 51136766143. The next prime is 51136766189. The reversal of 51136766167 is 76166763115.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 51136766167 - 2²⁷ = 51002548439 is a prime.

It is a super-2 number, since 2×51136766167² (a number of 22 digits) contains 22 as substring.

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 51136766167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51136760167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155013 + ... + 355390.

It is an arithmetic number, because the mean of its divisors is an integer number (12784344190).

Almost surely, 2^51136766167 is an apocalyptic number.

51136766167 is a deficient number, since it is larger than the sum of its proper divisors (610593).

51136766167 is a wasteful number, since it uses less digits than its factorization.

51136766167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610592.

The product of its digits is 952560, while the sum is 49.

The spelling of 51136766167 in words is "fifty-one billion, one hundred thirty-six million, seven hundred sixty-six thousand, one hundred sixty-seven".