51202372155120 has 120 divisors (see below), whose sum is σ = 171963290805696. Its totient is φ = 13653278452224.

The previous prime is 51202372155091. The next prime is 51202372155199. The reversal of 51202372155120 is 2155127320215.

51202372155120 is a `hidden beast` number, since 5 + 1 + 202 + 372 + 15 + 51 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×51202372155120² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12600297 + ... + 16160823.

Almost surely, 2^{51202372155120} is an apocalyptic number.

It is an amenable number.

51202372155120 is an abundant number, since it is smaller than the sum of its proper divisors (120760918650576).

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

51202372155120 is a wasteful number, since it uses less digits than its factorization.

51202372155120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3580519 (or 3580510 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

Adding to 51202372155120 its reverse (2155127320215), we get a palindrome (53357499475335).

The spelling of 51202372155120 in words is "fifty-one trillion, two hundred two billion, three hundred seventy-two million, one hundred fifty-five thousand, one hundred twenty".