22156620566 has 8 divisors (see below), whose sum is σ = 33381340920. Its totient is φ = 11029506928.

The previous prime is 22156620517. The next prime is 22156620587. The reversal of 22156620566 is 66502665122.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 24401111 + ... + 24402018.

It is an arithmetic number, because the mean of its divisors is an integer number (4172667615).

Almost surely, 2^22156620566 is an apocalyptic number.

22156620566 is a deficient number, since it is larger than the sum of its proper divisors (11224720354).

22156620566 is a wasteful number, since it uses less digits than its factorization.

22156620566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48803358.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 22156620566 in words is "twenty-two billion, one hundred fifty-six million, six hundred twenty thousand, five hundred sixty-six".