18895656222 has 12 divisors (see below), whose sum is σ = 40940588520. Its totient is φ = 6298552068.

The previous prime is 18895656191. The next prime is 18895656223. The reversal of 18895656222 is 22265659881.

18895656222 is a `hidden beast` number, since 1 + 8 + 8 + 9 + 5 + 6 + 5 + 622 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18895656223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 524879322 + ... + 524879357.

It is an arithmetic number, because the mean of its divisors is an integer number (3411715710).

Almost surely, 2^18895656222 is an apocalyptic number.

18895656222 is an abundant number, since it is smaller than the sum of its proper divisors (22044932298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18895656222 is a wasteful number, since it uses less digits than its factorization.

18895656222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049758687 (or 1049758684 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 54.

It can be divided in two parts, 18895656 and 222, that added together give a triangular number (18895878 = T₆₁₄₇).

The spelling of 18895656222 in words is "eighteen billion, eight hundred ninety-five million, six hundred fifty-six thousand, two hundred twenty-two".