51223014165 has 32 divisors (see below), whose sum is σ = 83224972800. Its totient is φ = 26898798080.

The previous prime is 51223014103. The next prime is 51223014187. The reversal of 51223014165 is 56141032215.

51223014165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51223014165 - 2¹⁰ = 51223013141 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 238795 + ... + 399335.

It is an arithmetic number, because the mean of its divisors is an integer number (2600780400).

Almost surely, 2^51223014165 is an apocalyptic number.

It is an amenable number.

51223014165 is a deficient number, since it is larger than the sum of its proper divisors (32001958635).

51223014165 is a wasteful number, since it uses less digits than its factorization.

51223014165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160877.

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 51223014165 in words is "fifty-one billion, two hundred twenty-three million, fourteen thousand, one hundred sixty-five".