51266612955936 has 288 divisors, whose sum is σ = 161617134809088. Its totient is φ = 14173259143680.

The previous prime is 51266612955919. The next prime is 51266612955959. The reversal of 51266612955936 is 63955921666215.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1429494741 + ... + 1429530603.

It is an arithmetic number, because the mean of its divisors is an integer number (561170606976).

Almost surely, 2^{51266612955936} is an apocalyptic number.

51266612955936 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51266612955936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80808567404544).

51266612955936 is an abundant number, since it is smaller than the sum of its proper divisors (110350521853152).

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

51266612955936 is a wasteful number, since it uses less digits than its factorization.

51266612955936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45724 (or 45709 counting only the distinct ones).

The product of its digits is 157464000, while the sum is 66.

The spelling of 51266612955936 in words is "fifty-one trillion, two hundred sixty-six billion, six hundred twelve million, nine hundred fifty-five thousand, nine hundred thirty-six".