51415062660 has 432 divisors, whose sum is σ = 178269698880. Its totient is φ = 12429780480.

The previous prime is 51415062659. The next prime is 51415062691. The reversal of 51415062660 is 6626051415.

51415062660 is a `hidden beast` number, since 5 + 14 + 15 + 0 + 626 + 6 + 0 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 48458530 + ... + 48459590.

It is an arithmetic number, because the mean of its divisors is an integer number (412661340).

Almost surely, 2^51415062660 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 51415062660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89134849440).

51415062660 is an abundant number, since it is smaller than the sum of its proper divisors (126854636220).

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

51415062660 is a wasteful number, since it uses less digits than its factorization.

51415062660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170 (or 1143 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 51415062660 in words is "fifty-one billion, four hundred fifteen million, sixty-two thousand, six hundred sixty".