51167456159 has 4 divisors (see below), whose sum is σ = 51211453416. Its totient is φ = 51123458904.

The previous prime is 51167456099. The next prime is 51167456173. The reversal of 51167456159 is 95165476115.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51167456159 - 2³² = 46872488863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51167455159) 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, 21996884 + ... + 21999209.

It is an arithmetic number, because the mean of its divisors is an integer number (12802863354).

Almost surely, 2^51167456159 is an apocalyptic number.

51167456159 is a deficient number, since it is larger than the sum of its proper divisors (43997257).

51167456159 is a wasteful number, since it uses less digits than its factorization.

51167456159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43997256.

The product of its digits is 1134000, while the sum is 50.

The spelling of 51167456159 in words is "fifty-one billion, one hundred sixty-seven million, four hundred fifty-six thousand, one hundred fifty-nine".