12156263044 has 6 divisors (see below), whose sum is σ = 21273460334. Its totient is φ = 6078131520.

The previous prime is 12156263029. The next prime is 12156263057. The reversal of 12156263044 is 44036265121.

It can be written as a sum of positive squares in only one way, i.e., 10348992900 + 1807270144 = 101730^2 + 42512^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1519532877 + ... + 1519532884.

Almost surely, 2^12156263044 is an apocalyptic number.

It is an amenable number.

12156263044 is a deficient number, since it is larger than the sum of its proper divisors (9117197290).

12156263044 is a wasteful number, since it uses less digits than its factorization.

12156263044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3039065765 (or 3039065763 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 12156263044 in words is "twelve billion, one hundred fifty-six million, two hundred sixty-three thousand, forty-four".