12023564552 has 16 divisors (see below), whose sum is σ = 23094042300. Its totient is φ = 5865153280.

The previous prime is 12023564537. The next prime is 12023564557. The reversal of 12023564552 is 25546532021.

It can be written as a sum of positive squares in 2 ways, for example, as 11997697156 + 25867396 = 109534^2 + 5086^2 .

It is a super-3 number, since 3×12023564552³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (12023564557) 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, 18328277 + ... + 18328932.

Almost surely, 2^12023564552 is an apocalyptic number.

It is an amenable number.

12023564552 is a deficient number, since it is larger than the sum of its proper divisors (11070477748).

12023564552 is a wasteful number, since it uses less digits than its factorization.

12023564552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36657256 (or 36657252 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 12023564552 in words is "twelve billion, twenty-three million, five hundred sixty-four thousand, five hundred fifty-two".