51112666080 has 576 divisors, whose sum is σ = 216624844800. Its totient is φ = 10709729280.

The previous prime is 51112666043. The next prime is 51112666081. The reversal of 51112666080 is 8066621115.

It is a super-2 number, since 2×51112666080² (a number of 22 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 not an unprimeable number, because it can be changed into a prime (51112666081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5932816 + ... + 5941424.

It is an arithmetic number, because the mean of its divisors is an integer number (376084800).

Almost surely, 2^51112666080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51112666080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108312422400).

51112666080 is an abundant number, since it is smaller than the sum of its proper divisors (165512178720).

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

51112666080 is a wasteful number, since it uses less digits than its factorization.

51112666080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8687 (or 8676 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 51112666080 in words is "fifty-one billion, one hundred twelve million, six hundred sixty-six thousand, eighty".