22155426164 has 6 divisors (see below), whose sum is σ = 38771995794. Its totient is φ = 11077713080.

The previous prime is 22155426157. The next prime is 22155426169. The reversal of 22155426164 is 46162455122.

It can be written as a sum of positive squares in only one way, i.e., 21898080400 + 257345764 = 147980^2 + 16042^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22155426169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2769428267 + ... + 2769428274.

It is an arithmetic number, because the mean of its divisors is an integer number (6461999299).

Almost surely, 2^22155426164 is an apocalyptic number.

It is an amenable number.

22155426164 is a deficient number, since it is larger than the sum of its proper divisors (16616569630).

22155426164 is a wasteful number, since it uses less digits than its factorization.

22155426164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5538856545 (or 5538856543 counting only the distinct ones).

The product of its digits is 115200, while the sum is 38.

The spelling of 22155426164 in words is "twenty-two billion, one hundred fifty-five million, four hundred twenty-six thousand, one hundred sixty-four".