54721159656 has 32 divisors (see below), whose sum is σ = 137847204000. Its totient is φ = 18101145920.

The previous prime is 54721159639. The next prime is 54721159721. The reversal of 54721159656 is 65695112745.

54721159656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 54721159599 and 54721159608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8699331 + ... + 8705618.

It is an arithmetic number, because the mean of its divisors is an integer number (4307725125).

Almost surely, 2^54721159656 is an apocalyptic number.

It is an amenable number.

54721159656 is an abundant number, since it is smaller than the sum of its proper divisors (83126044344).

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

54721159656 is a wasteful number, since it uses less digits than its factorization.

54721159656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17405089 (or 17405085 counting only the distinct ones).

The product of its digits is 2268000, while the sum is 51.

The spelling of 54721159656 in words is "fifty-four billion, seven hundred twenty-one million, one hundred fifty-nine thousand, six hundred fifty-six".