22911665956 has 9 divisors (see below), whose sum is σ = 40095945211. Its totient is φ = 11455681612.

The previous prime is 22911665911. The next prime is 22911665957. The reversal of 22911665956 is 65956611922.

The square root of 22911665956 is 151366.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22911665957) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 264891 + ... + 340573.

Almost surely, 2^22911665956 is an apocalyptic number.

22911665956 is the 151366-th square number.

It is an amenable number.

22911665956 is a deficient number, since it is larger than the sum of its proper divisors (17184279255).

22911665956 is an frugal number, since it uses more digits than its factorization.

22911665956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151370 (or 75685 counting only the distinct ones).

The product of its digits is 1749600, while the sum is 52.

The spelling of 22911665956 in words is "twenty-two billion, nine hundred eleven million, six hundred sixty-five thousand, nine hundred fifty-six".