51120053622168 has 32 divisors (see below), whose sum is σ = 127813964296560. Its totient is φ = 17038173841920.

The previous prime is 51120053622103. The next prime is 51120053622221. The reversal of 51120053622168 is 86122635002115.

It is a super-2 number, since 2×51120053622168² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115025605 + ... + 115469172.

Almost surely, 2^{51120053622168} is an apocalyptic number.

It is an amenable number.

51120053622168 is an abundant number, since it is smaller than the sum of its proper divisors (76693910674392).

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

51120053622168 is a wasteful number, since it uses less digits than its factorization.

51120053622168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230504027 (or 230504023 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 51120053622168 in words is "fifty-one trillion, one hundred twenty billion, fifty-three million, six hundred twenty-two thousand, one hundred sixty-eight".