564161551404631 has 16 divisors (see below), whose sum is σ = 572032331912160. Its totient is φ = 556316399998080.

The previous prime is 564161551404589. The next prime is 564161551404643. The reversal of 564161551404631 is 136404155161465.

It is a cyclic number.

It is not a de Polignac number, because 564161551404631 - 2¹¹ = 564161551402583 is a prime.

It is a super-2 number, since 2×564161551404631² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564161551404931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1536082725 + ... + 1536449953.

It is an arithmetic number, because the mean of its divisors is an integer number (35752020744510).

Almost surely, 2^{564161551404631} is an apocalyptic number.

564161551404631 is a deficient number, since it is larger than the sum of its proper divisors (7870780507529).

564161551404631 is a wasteful number, since it uses less digits than its factorization.

564161551404631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402066.

The product of its (nonzero) digits is 5184000, while the sum is 52.

The spelling of 564161551404631 in words is "five hundred sixty-four trillion, one hundred sixty-one billion, five hundred fifty-one million, four hundred four thousand, six hundred thirty-one".