56722744144 has 80 divisors (see below), whose sum is σ = 121070376000. Its totient is φ = 25530485760.

The previous prime is 56722744129. The next prime is 56722744151. The reversal of 56722744144 is 44144722765.

It is a junction number, because it is equal to n+sod(n) for n = 56722744094 and 56722744103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10002942 + ... + 10008610.

It is an arithmetic number, because the mean of its divisors is an integer number (1513379700).

Almost surely, 2^56722744144 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 56722744144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60535188000).

56722744144 is an abundant number, since it is smaller than the sum of its proper divisors (64347631856).

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

56722744144 is a wasteful number, since it uses less digits than its factorization.

56722744144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6236 (or 6230 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 46.

The spelling of 56722744144 in words is "fifty-six billion, seven hundred twenty-two million, seven hundred forty-four thousand, one hundred forty-four".