6376345564557 has 4 divisors (see below), whose sum is σ = 8501794086080. Its totient is φ = 4250897043036.

The previous prime is 6376345564541. The next prime is 6376345564627. The reversal of 6376345564557 is 7554655436736.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6376345564557 - 2⁴ = 6376345564541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6376345564357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1062724260757 + ... + 1062724260762.

It is an arithmetic number, because the mean of its divisors is an integer number (2125448521520).

Almost surely, 2^{6376345564557} is an apocalyptic number.

It is an amenable number.

6376345564557 is a deficient number, since it is larger than the sum of its proper divisors (2125448521523).

6376345564557 is a wasteful number, since it uses less digits than its factorization.

6376345564557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125448521522.

The product of its digits is 952560000, while the sum is 66.

The spelling of 6376345564557 in words is "six trillion, three hundred seventy-six billion, three hundred forty-five million, five hundred sixty-four thousand, five hundred fifty-seven".