22440666660 has 48 divisors (see below), whose sum is σ = 62979052416. Its totient is φ = 5970350592.

The previous prime is 22440666643. The next prime is 22440666673. The reversal of 22440666660 is 6666604422.

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, 405904 + ... + 457863.

It is an arithmetic number, because the mean of its divisors is an integer number (1312063592).

Almost surely, 2^22440666660 is an apocalyptic number.

22440666660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22440666660 is an abundant number, since it is smaller than the sum of its proper divisors (40538385756).

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

22440666660 is a wasteful number, since it uses less digits than its factorization.

22440666660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864212 (or 864210 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 22440666660 in words is "twenty-two billion, four hundred forty million, six hundred sixty-six thousand, six hundred sixty".