22331656464 has 160 divisors (see below), whose sum is σ = 63803249664. Its totient is φ = 6687152640.

The previous prime is 22331656439. The next prime is 22331656537. The reversal of 22331656464 is 46465613322.

It is a happy number.

It is a super-2 number, since 2×22331656464² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8236069 + ... + 8238779.

Almost surely, 2^22331656464 is an apocalyptic number.

22331656464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22331656464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31901624832).

22331656464 is an abundant number, since it is smaller than the sum of its proper divisors (41471593200).

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

22331656464 is a wasteful number, since it uses less digits than its factorization.

22331656464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085 (or 3079 counting only the distinct ones).

The product of its digits is 622080, while the sum is 42.

The spelling of 22331656464 in words is "twenty-two billion, three hundred thirty-one million, six hundred fifty-six thousand, four hundred sixty-four".