222640513564 has 12 divisors (see below), whose sum is σ = 445281027184. Its totient is φ = 95417362944.

The previous prime is 222640513553. The next prime is 222640513597. The reversal of 222640513564 is 465315046222.

It is a happy number.

222640513564 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3975723429 + ... + 3975723484.

Almost surely, 2^222640513564 is an apocalyptic number.

It is an amenable number.

222640513564 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

222640513564 is a wasteful number, since it uses less digits than its factorization.

222640513564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7951446924 (or 7951446922 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

Adding to 222640513564 its reverse (465315046222), we get a palindrome (687955559786).

The spelling of 222640513564 in words is "two hundred twenty-two billion, six hundred forty million, five hundred thirteen thousand, five hundred sixty-four".