57220130561 has 32 divisors (see below), whose sum is σ = 70147969920. Its totient is φ = 46381294080.

The previous prime is 57220130557. The next prime is 57220130563. The reversal of 57220130561 is 16503102275.

It is not a de Polignac number, because 57220130561 - 2² = 57220130557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57220130563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 363365 + ... + 496461.

It is an arithmetic number, because the mean of its divisors is an integer number (2192124060).

Almost surely, 2^57220130561 is an apocalyptic number.

It is an amenable number.

57220130561 is a deficient number, since it is larger than the sum of its proper divisors (12927839359).

57220130561 is a wasteful number, since it uses less digits than its factorization.

57220130561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133166 (or 133144 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

It can be divided in two parts, 57220 and 130561, that added together give a palindrome (187781).

The spelling of 57220130561 in words is "fifty-seven billion, two hundred twenty million, one hundred thirty thousand, five hundred sixty-one".