12351655044 has 27 divisors (see below), whose sum is σ = 31223924823. Its totient is φ = 4116996072.

The previous prime is 12351655009. The next prime is 12351655051. The reversal of 12351655044 is 44055615321.

The square root of 12351655044 is 111138.

It is a perfect power (a square), and thus also a powerful number.

12351655044 is a `hidden beast` number, since 12 + 3 + 51 + 6 + 550 + 44 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 657567 + ... + 676089.

Almost surely, 2^12351655044 is an apocalyptic number.

12351655044 is the 111138-th square number.

It is an amenable number.

12351655044 is an abundant number, since it is smaller than the sum of its proper divisors (18872269779).

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

12351655044 is an frugal number, since it uses more digits than its factorization.

12351655044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37056 (or 18528 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Multiplying 12351655044 by its sum of digits (36), we get a square (444659581584 = 666828²).

12351655044 divided by its sum of digits (36) gives a square (343101529 = 18523²).

The spelling of 12351655044 in words is "twelve billion, three hundred fifty-one million, six hundred fifty-five thousand, forty-four".