56201066020 has 72 divisors (see below), whose sum is σ = 137358019512. Its totient is φ = 19234575360.

The previous prime is 56201065981. The next prime is 56201066039. The reversal of 56201066020 is 2066010265.

It can be written as a sum of positive squares in 4 ways, for example, as 7140588004 + 49060478016 = 84502^2 + 221496^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 56201066020.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 641907 + ... + 724186.

It is an arithmetic number, because the mean of its divisors is an integer number (1907750271).

Almost surely, 2^56201066020 is an apocalyptic number.

It is an amenable number.

56201066020 is an abundant number, since it is smaller than the sum of its proper divisors (81156953492).

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

56201066020 is a wasteful number, since it uses less digits than its factorization.

56201066020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366141 (or 1366128 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 56201066020 its reverse (2066010265), we get a palindrome (58267076285).

The spelling of 56201066020 in words is "fifty-six billion, two hundred one million, sixty-six thousand, twenty".