22318220664 has 48 divisors (see below), whose sum is σ = 62529503400. Its totient is φ = 7182874944.

The previous prime is 22318220627. The next prime is 22318220671. The reversal of 22318220664 is 46602281322.

It is a super-3 number, since 3×22318220664³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5342314 + ... + 5346489.

Almost surely, 2^22318220664 is an apocalyptic number.

22318220664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22318220664 is an abundant number, since it is smaller than the sum of its proper divisors (40211282736).

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

22318220664 is a wasteful number, since it uses less digits than its factorization.

22318220664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10688844 (or 10688837 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The spelling of 22318220664 in words is "twenty-two billion, three hundred eighteen million, two hundred twenty thousand, six hundred sixty-four".