51606152164 has 12 divisors (see below), whose sum is σ = 103212304384. Its totient is φ = 22116922344.

The previous prime is 51606152161. The next prime is 51606152167. The reversal of 51606152164 is 46125160615.

It is an interprime number because it is at equal distance from previous prime (51606152161) and next prime (51606152167).

51606152164 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (51606152161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 921538404 + ... + 921538459.

Almost surely, 2^51606152164 is an apocalyptic number.

It is an amenable number.

51606152164 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51606152164 is a wasteful number, since it uses less digits than its factorization.

51606152164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843076874 (or 1843076872 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 51606152164 in words is "fifty-one billion, six hundred six million, one hundred fifty-two thousand, one hundred sixty-four".