22555651616665 has 8 divisors (see below), whose sum is σ = 27392887747008. Its totient is φ = 17827117422000.

The previous prime is 22555651616623. The next prime is 22555651616677. The reversal of 22555651616665 is 56661615655522.

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

It is not a de Polignac number, because 22555651616665 - 2²⁵ = 22555618062233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27175483461 + ... + 27175484290.

It is an arithmetic number, because the mean of its divisors is an integer number (3424110968376).

Almost surely, 2^{22555651616665} is an apocalyptic number.

It is an amenable number.

22555651616665 is a deficient number, since it is larger than the sum of its proper divisors (4837236130343).

22555651616665 is an equidigital number, since it uses as much as digits as its factorization.

22555651616665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54350967839.

The product of its digits is 97200000, while the sum is 61.

The spelling of 22555651616665 in words is "twenty-two trillion, five hundred fifty-five billion, six hundred fifty-one million, six hundred sixteen thousand, six hundred sixty-five".