22659956819 has 4 divisors (see below), whose sum is σ = 23390923200. Its totient is φ = 21928990440.

The previous prime is 22659956773. The next prime is 22659956849. The reversal of 22659956819 is 91865995622.

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

It is a cyclic number.

It is not a de Polignac number, because 22659956819 - 2⁸ = 22659956563 is a prime.

It is a super-2 number, since 2×22659956819² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22659956849) 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, 365483144 + ... + 365483205.

It is an arithmetic number, because the mean of its divisors is an integer number (5847730800).

Almost surely, 2^22659956819 is an apocalyptic number.

22659956819 is a deficient number, since it is larger than the sum of its proper divisors (730966381).

22659956819 is an equidigital number, since it uses as much as digits as its factorization.

22659956819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730966380.

The product of its digits is 20995200, while the sum is 62.

The spelling of 22659956819 in words is "twenty-two billion, six hundred fifty-nine million, nine hundred fifty-six thousand, eight hundred nineteen".