23561816532 has 48 divisors (see below), whose sum is σ = 56337869952. Its totient is φ = 7659742720.

The previous prime is 23561816527. The next prime is 23561816591.

23561816532 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1847008 + ... + 1859720.

It is an arithmetic number, because the mean of its divisors is an integer number (1173705624).

Almost surely, 2^23561816532 is an apocalyptic number.

It is an amenable number.

23561816532 is an abundant number, since it is smaller than the sum of its proper divisors (32776053420).

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

23561816532 is a wasteful number, since it uses less digits than its factorization.

23561816532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16528 (or 16526 counting only the distinct ones).

The product of its digits is 259200, while the sum is 42.

The spelling of 23561816532 in words is "twenty-three billion, five hundred sixty-one million, eight hundred sixteen thousand, five hundred thirty-two".