11722051564 has 12 divisors (see below), whose sum is σ = 20515234824. Its totient is φ = 5860555904.

The previous prime is 11722051553. The next prime is 11722051567. The reversal of 11722051564 is 46515022711.

It is not an unprimeable number, because it can be changed into a prime (11722051567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57994 + ... + 163729.

It is an arithmetic number, because the mean of its divisors is an integer number (1709602902).

Almost surely, 2^11722051564 is an apocalyptic number.

It is an amenable number.

11722051564 is a deficient number, since it is larger than the sum of its proper divisors (8793183260).

11722051564 is a wasteful number, since it uses less digits than its factorization.

11722051564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234944 (or 234942 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The spelling of 11722051564 in words is "eleven billion, seven hundred twenty-two million, fifty-one thousand, five hundred sixty-four".