12232344564 has 72 divisors (see below), whose sum is σ = 35198235072. Its totient is φ = 3545604480.

The previous prime is 12232344563. The next prime is 12232344601. The reversal of 12232344564 is 46544323221.

12232344564 is a `hidden beast` number, since 1 + 22 + 32 + 3 + 44 + 564 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12232344563) 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, 662409 + ... + 680624.

It is an arithmetic number, because the mean of its divisors is an integer number (488864376).

Almost surely, 2^12232344564 is an apocalyptic number.

It is an amenable number.

12232344564 is an abundant number, since it is smaller than the sum of its proper divisors (22965890508).

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

12232344564 is a wasteful number, since it uses less digits than its factorization.

12232344564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343077 (or 1343072 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

Adding to 12232344564 its reverse (46544323221), we get a palindrome (58776667785).

The spelling of 12232344564 in words is "twelve billion, two hundred thirty-two million, three hundred forty-four thousand, five hundred sixty-four".