580661631 has 24 divisors (see below), whose sum is σ = 915844176. Its totient is φ = 351584640.

The previous prime is 580661629. The next prime is 580661633. The reversal of 580661631 is 136166085.

It is a happy number.

580661631 is a `hidden beast` number, since 5 + 8 + 0 + 6 + 616 + 31 = 666.

It is an interprime number because it is at equal distance from previous prime (580661629) and next prime (580661633).

It is not a de Polignac number, because 580661631 - 2¹ = 580661629 is a prime.

It is a super-2 number, since 2×580661631² = 674335859431160322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (580661633) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139821 + ... + 143913.

It is an arithmetic number, because the mean of its divisors is an integer number (38160174).

Almost surely, 2^580661631 is an apocalyptic number.

580661631 is a deficient number, since it is larger than the sum of its proper divisors (335182545).

580661631 is a wasteful number, since it uses less digits than its factorization.

580661631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5543 (or 5540 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 580661631 is about 24096.9216083715. The cubic root of 580661631 is about 834.2720805429.

The spelling of 580661631 in words is "five hundred eighty million, six hundred sixty-one thousand, six hundred thirty-one".