22961660665666 has 16 divisors (see below), whose sum is σ = 34478582060160. Its totient is φ = 11468802393360.

The previous prime is 22961660665663. The next prime is 22961660665703. The reversal of 22961660665666 is 66656606616922.

It is not an unprimeable number, because it can be changed into a prime (22961660665661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18581415 + ... + 19778581.

It is an arithmetic number, because the mean of its divisors is an integer number (2154911378760).

Almost surely, 2^{22961660665666} is an apocalyptic number.

22961660665666 is a deficient number, since it is larger than the sum of its proper divisors (11516921394494).

22961660665666 is a wasteful number, since it uses less digits than its factorization.

22961660665666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207209.

The product of its (nonzero) digits is 302330880, while the sum is 67.

The spelling of 22961660665666 in words is "twenty-two trillion, nine hundred sixty-one billion, six hundred sixty million, six hundred sixty-five thousand, six hundred sixty-six".