22231655456 has 48 divisors (see below), whose sum is σ = 45395013888. Its totient is φ = 10706169600.

The previous prime is 22231655443. The next prime is 22231655473. The reversal of 22231655456 is 65455613222.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156206 + ... + 262418.

It is an arithmetic number, because the mean of its divisors is an integer number (945729456).

Almost surely, 2^22231655456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22231655456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22697506944).

22231655456 is an abundant number, since it is smaller than the sum of its proper divisors (23163358432).

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

22231655456 is a wasteful number, since it uses less digits than its factorization.

22231655456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106465 (or 106457 counting only the distinct ones).

The product of its digits is 432000, while the sum is 41.

It can be divided in two parts, 222316 and 55456, that added together give a palindrome (277772).

The spelling of 22231655456 in words is "twenty-two billion, two hundred thirty-one million, six hundred fifty-five thousand, four hundred fifty-six".