22027699577 has 4 divisors (see below), whose sum is σ = 23722138020. Its totient is φ = 20333261136.

The previous prime is 22027699549. The next prime is 22027699591. The reversal of 22027699577 is 77599672022.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7717798201 + 14309901376 = 87851^2 + 119624^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22027699577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22027699597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 847219202 + ... + 847219227.

It is an arithmetic number, because the mean of its divisors is an integer number (5930534505).

Almost surely, 2^22027699577 is an apocalyptic number.

It is an amenable number.

22027699577 is a deficient number, since it is larger than the sum of its proper divisors (1694438443).

22027699577 is a wasteful number, since it uses less digits than its factorization.

22027699577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694438442.

The product of its (nonzero) digits is 6667920, while the sum is 56.

The spelling of 22027699577 in words is "twenty-two billion, twenty-seven million, six hundred ninety-nine thousand, five hundred seventy-seven".