22281767664 has 80 divisors (see below), whose sum is σ = 64126624800. Its totient is φ = 6619511808.

The previous prime is 22281767653. The next prime is 22281767681. The reversal of 22281767664 is 46676718222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 597559 + ... + 633750.

It is an arithmetic number, because the mean of its divisors is an integer number (801582810).

Almost surely, 2^22281767664 is an apocalyptic number.

22281767664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22281767664 is an abundant number, since it is smaller than the sum of its proper divisors (41844857136).

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

22281767664 is a wasteful number, since it uses less digits than its factorization.

22281767664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231362 (or 1231356 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 51.

The spelling of 22281767664 in words is "twenty-two billion, two hundred eighty-one million, seven hundred sixty-seven thousand, six hundred sixty-four".