51654215022656 has 56 divisors (see below), whose sum is σ = 103798685512704. Its totient is φ = 25500589862400.

The previous prime is 51654215022607. The next prime is 51654215022737. The reversal of 51654215022656 is 65622051245615.

51654215022656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 5910206 + ... + 11757506.

It is an arithmetic number, because the mean of its divisors is an integer number (1853547955584).

Almost surely, 2^{51654215022656} 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 51654215022656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51899342756352).

51654215022656 is an abundant number, since it is smaller than the sum of its proper divisors (52144470490048).

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

51654215022656 is a wasteful number, since it uses less digits than its factorization.

51654215022656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5849059 (or 5849049 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 50.

The spelling of 51654215022656 in words is "fifty-one trillion, six hundred fifty-four billion, two hundred fifteen million, twenty-two thousand, six hundred fifty-six".