57155446164561 has 8 divisors (see below), whose sum is σ = 76207447369344. Its totient is φ = 38103537868080.

The previous prime is 57155446164559. The next prime is 57155446164601. The reversal of 57155446164561 is 16546164455175.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57155446164561 - 2¹ = 57155446164559 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57155446164495 and 57155446164504.

It is not an unprimeable number, because it can be changed into a prime (57155446164541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21778750 + ... + 24261591.

It is an arithmetic number, because the mean of its divisors is an integer number (9525930921168).

Almost surely, 2^{57155446164561} is an apocalyptic number.

It is an amenable number.

57155446164561 is a deficient number, since it is larger than the sum of its proper divisors (19052001204783).

57155446164561 is a wasteful number, since it uses less digits than its factorization.

57155446164561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46454151.

The product of its digits is 60480000, while the sum is 60.

The spelling of 57155446164561 in words is "fifty-seven trillion, one hundred fifty-five billion, four hundred forty-six million, one hundred sixty-four thousand, five hundred sixty-one".