51660303873 has 16 divisors (see below), whose sum is σ = 70748918016. Its totient is φ = 33506127360.

The previous prime is 51660303833. The next prime is 51660303899. The reversal of 51660303873 is 37830306615.

It is not a de Polignac number, because 51660303873 - 2³⁴ = 34480434689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51660303833) 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, 1738065 + ... + 1767537.

It is an arithmetic number, because the mean of its divisors is an integer number (4421807376).

Almost surely, 2^51660303873 is an apocalyptic number.

It is an amenable number.

51660303873 is a deficient number, since it is larger than the sum of its proper divisors (19088614143).

51660303873 is a wasteful number, since it uses less digits than its factorization.

51660303873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45304.

The product of its (nonzero) digits is 272160, while the sum is 42.

The spelling of 51660303873 in words is "fifty-one billion, six hundred sixty million, three hundred three thousand, eight hundred seventy-three".