11772323156 has 24 divisors (see below), whose sum is σ = 22482062400. Its totient is φ = 5349240000.

The previous prime is 11772323141. The next prime is 11772323209. The reversal of 11772323156 is 65132327711.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90281 + ... + 178031.

It is an arithmetic number, because the mean of its divisors is an integer number (936752600).

Almost surely, 2^11772323156 is an apocalyptic number.

It is an amenable number.

11772323156 is a deficient number, since it is larger than the sum of its proper divisors (10709739244).

11772323156 is a wasteful number, since it uses less digits than its factorization.

11772323156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90815 (or 90813 counting only the distinct ones).

The product of its digits is 52920, while the sum is 38.

The spelling of 11772323156 in words is "eleven billion, seven hundred seventy-two million, three hundred twenty-three thousand, one hundred fifty-six".