22237966464 has 128 divisors (see below), whose sum is σ = 67578900480. Its totient is φ = 6347043840.

The previous prime is 22237966459. The next prime is 22237966489. The reversal of 22237966464 is 46466973222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

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, 2928817 + ... + 2936399.

It is an arithmetic number, because the mean of its divisors is an integer number (527960160).

Almost surely, 2^22237966464 is an apocalyptic number.

22237966464 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 22237966464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33789450240).

22237966464 is an abundant number, since it is smaller than the sum of its proper divisors (45340934016).

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

22237966464 is a wasteful number, since it uses less digits than its factorization.

22237966464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8698 (or 8686 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 51.

The spelling of 22237966464 in words is "twenty-two billion, two hundred thirty-seven million, nine hundred sixty-six thousand, four hundred sixty-four".