51512852160 has 672 divisors, whose sum is σ = 222528384000. Its totient is φ = 10625310720.

The previous prime is 51512852137. The next prime is 51512852219. The reversal of 51512852160 is 6125821515.

51512852160 is a `hidden beast` number, since 5 + 1 + 5 + 128 + 521 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 33041461 + ... + 33043019.

Almost surely, 2^51512852160 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 51512852160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111264192000).

51512852160 is an abundant number, since it is smaller than the sum of its proper divisors (171015531840).

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

51512852160 is a wasteful number, since it uses less digits than its factorization.

51512852160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749 (or 1736 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 36.

The spelling of 51512852160 in words is "fifty-one billion, five hundred twelve million, eight hundred fifty-two thousand, one hundred sixty".