57966715645 has 4 divisors (see below), whose sum is σ = 69560058780. Its totient is φ = 46373372512.

The previous prime is 57966715637. The next prime is 57966715663. The reversal of 57966715645 is 54651766975.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14917935321 + 43048780324 = 122139^2 + 207482^2 .

It is a cyclic number.

It is not a de Polignac number, because 57966715645 - 2³ = 57966715637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5796671560 + ... + 5796671569.

It is an arithmetic number, because the mean of its divisors is an integer number (17390014695).

Almost surely, 2^57966715645 is an apocalyptic number.

It is an amenable number.

57966715645 is a deficient number, since it is larger than the sum of its proper divisors (11593343135).

57966715645 is a wasteful number, since it uses less digits than its factorization.

57966715645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11593343134.

The product of its digits is 47628000, while the sum is 61.

It can be divided in two parts, 579 and 66715645, that added together give a square (66716224 = 8168²).

The spelling of 57966715645 in words is "fifty-seven billion, nine hundred sixty-six million, seven hundred fifteen thousand, six hundred forty-five".