22245666690 has 64 divisors (see below), whose sum is σ = 58089338496. Its totient is φ = 5419395072.

The previous prime is 22245666601. The next prime is 22245666731. The reversal of 22245666690 is 9666654222.

It is a super-2 number, since 2×22245666690² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 256192 + ... + 331851.

It is an arithmetic number, because the mean of its divisors is an integer number (907645914).

Almost surely, 2^22245666690 is an apocalyptic number.

22245666690 is an abundant number, since it is smaller than the sum of its proper divisors (35843671806).

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

22245666690 is a wasteful number, since it uses less digits than its factorization.

22245666690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588163.

The product of its (nonzero) digits is 1866240, while the sum is 48.

The spelling of 22245666690 in words is "twenty-two billion, two hundred forty-five million, six hundred sixty-six thousand, six hundred ninety".