57305161761 has 8 divisors (see below), whose sum is σ = 77107863360. Its totient is φ = 37852950672.

The previous prime is 57305161759. The next prime is 57305161799. The reversal of 57305161761 is 16716150375.

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

It is not a de Polignac number, because 57305161761 - 2¹ = 57305161759 is a prime.

It is a super-2 number, since 2×57305161761² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57305161561) 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 7 ways as a sum of consecutive naturals, for example, 87622245 + ... + 87622898.

It is an arithmetic number, because the mean of its divisors is an integer number (9638482920).

Almost surely, 2^57305161761 is an apocalyptic number.

It is an amenable number.

57305161761 is a deficient number, since it is larger than the sum of its proper divisors (19802701599).

57305161761 is a wasteful number, since it uses less digits than its factorization.

57305161761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175245255.

The product of its (nonzero) digits is 132300, while the sum is 42.

The spelling of 57305161761 in words is "fifty-seven billion, three hundred five million, one hundred sixty-one thousand, seven hundred sixty-one".