51166164 has 48 divisors (see below), whose sum is σ = 143628800. Its totient is φ = 13849056.

The previous prime is 51166163. The next prime is 51166169. The reversal of 51166164 is 46166115.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51166163) 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, 14434 + ... + 17625.

Almost surely, 2^51166164 is an apocalyptic number.

It is an amenable number.

51166164 is an abundant number, since it is smaller than the sum of its proper divisors (92462636).

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

51166164 is a wasteful number, since it uses less digits than its factorization.

51166164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32092 (or 32090 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 51166164 is about 7153.0527748647. The cubic root of 51166164 is about 371.2452903301.

The spelling of 51166164 in words is "fifty-one million, one hundred sixty-six thousand, one hundred sixty-four".