22660055636566 has 4 divisors (see below), whose sum is σ = 33990083454852. Its totient is φ = 11330027818282.

The previous prime is 22660055636549. The next prime is 22660055636593. The reversal of 22660055636566 is 66563655006622.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22660055636566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5665013909140 + ... + 5665013909143.

It is an arithmetic number, because the mean of its divisors is an integer number (8497520863713).

Almost surely, 2^{22660055636566} is an apocalyptic number.

22660055636566 is a deficient number, since it is larger than the sum of its proper divisors (11330027818286).

22660055636566 is a wasteful number, since it uses less digits than its factorization.

22660055636566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11330027818285.

The product of its (nonzero) digits is 69984000, while the sum is 58.

The spelling of 22660055636566 in words is "twenty-two trillion, six hundred sixty billion, fifty-five million, six hundred thirty-six thousand, five hundred sixty-six".