561546144132 has 36 divisors (see below), whose sum is σ = 1319127768336. Its totient is φ = 185925704480.

The previous prime is 561546144059. The next prime is 561546144139. The reversal of 561546144132 is 231441645165.

It is not an unprimeable number, because it can be changed into a prime (561546144139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 787494 + ... + 1320317.

Almost surely, 2^561546144132 is an apocalyptic number.

It is an amenable number.

561546144132 is an abundant number, since it is smaller than the sum of its proper divisors (757581624204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561546144132 is a wasteful number, since it uses less digits than its factorization.

561546144132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108116 (or 2107965 counting only the distinct ones).

The product of its digits is 345600, while the sum is 42.

Adding to 561546144132 its reverse (231441645165), we get a palindrome (792987789297).

The spelling of 561546144132 in words is "five hundred sixty-one billion, five hundred forty-six million, one hundred forty-four thousand, one hundred thirty-two".