11720722264 has 16 divisors (see below), whose sum is σ = 22033739520. Its totient is φ = 5845058400.

The previous prime is 11720722241. The next prime is 11720722271. The reversal of 11720722264 is 46222702711.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1909587 + ... + 1915714.

It is an arithmetic number, because the mean of its divisors is an integer number (1377108720).

Almost surely, 2^11720722264 is an apocalyptic number.

It is an amenable number.

11720722264 is a deficient number, since it is larger than the sum of its proper divisors (10313017256).

11720722264 is a wasteful number, since it uses less digits than its factorization.

11720722264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3825690 (or 3825686 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The spelling of 11720722264 in words is "eleven billion, seven hundred twenty million, seven hundred twenty-two thousand, two hundred sixty-four".