51510000165 has 16 divisors (see below), whose sum is σ = 88755692928. Its totient is φ = 25358769216.

The previous prime is 51510000127. The next prime is 51510000169. The reversal of 51510000165 is 56100001515.

It is not a de Polignac number, because 51510000165 - 2¹⁴ = 51509983781 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51510000169) 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, 132076729 + ... + 132077118.

It is an arithmetic number, because the mean of its divisors is an integer number (5547230808).

Almost surely, 2^51510000165 is an apocalyptic number.

It is an amenable number.

51510000165 is a deficient number, since it is larger than the sum of its proper divisors (37245692763).

51510000165 is a wasteful number, since it uses less digits than its factorization.

51510000165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264153868.

The product of its (nonzero) digits is 750, while the sum is 24.

The spelling of 51510000165 in words is "fifty-one billion, five hundred ten million, one hundred sixty-five", and thus it is an aban number.