561614431156 has 12 divisors (see below), whose sum is σ = 996288614692. Its totient is φ = 276960541248.

The previous prime is 561614431151. The next prime is 561614431177. The reversal of 561614431156 is 651134416165.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 148764490000 + 412849941156 = 385700^2 + 642534^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561614431151) 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, 961668255 + ... + 961668838.

Almost surely, 2^561614431156 is an apocalyptic number.

It is an amenable number.

561614431156 is a deficient number, since it is larger than the sum of its proper divisors (434674183536).

561614431156 is a wasteful number, since it uses less digits than its factorization.

561614431156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923337170 (or 1923337168 counting only the distinct ones).

The product of its digits is 259200, while the sum is 43.

The spelling of 561614431156 in words is "five hundred sixty-one billion, six hundred fourteen million, four hundred thirty-one thousand, one hundred fifty-six".