566401315437 has 12 divisors (see below), whose sum is σ = 818143626300. Its totient is φ = 377597003328.

The previous prime is 566401315369. The next prime is 566401315453. The reversal of 566401315437 is 734513104665.

566401315437 is a `hidden beast` number, since 5 + 66 + 40 + 1 + 3 + 1 + 543 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 402125929956 + 164275385481 = 634134^2 + 405309^2 .

It is not a de Polignac number, because 566401315437 - 2²³ = 566392926829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 566401315392 and 566401315401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566401325437) 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 11 ways as a sum of consecutive naturals, for example, 813939 + ... + 1339887.

It is an arithmetic number, because the mean of its divisors is an integer number (68178635525).

Almost surely, 2^566401315437 is an apocalyptic number.

It is an amenable number.

566401315437 is a deficient number, since it is larger than the sum of its proper divisors (251742310863).

566401315437 is a wasteful number, since it uses less digits than its factorization.

566401315437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645612 (or 645609 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 566401315437 in words is "five hundred sixty-six billion, four hundred one million, three hundred fifteen thousand, four hundred thirty-seven".