22666237664 has 96 divisors (see below), whose sum is σ = 51808813056. Its totient is φ = 9560355840.

The previous prime is 22666237661. The next prime is 22666237681. The reversal of 22666237664 is 46673266622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22666237661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13628897 + ... + 13630559.

It is an arithmetic number, because the mean of its divisors is an integer number (539675136).

Almost surely, 2^22666237664 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 22666237664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25904406528).

22666237664 is an abundant number, since it is smaller than the sum of its proper divisors (29142575392).

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

22666237664 is a wasteful number, since it uses less digits than its factorization.

22666237664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2608 (or 2600 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 50.

The spelling of 22666237664 in words is "twenty-two billion, six hundred sixty-six million, two hundred thirty-seven thousand, six hundred sixty-four".