12220766364 has 96 divisors (see below), whose sum is σ = 30093525504. Its totient is φ = 3852414720.

The previous prime is 12220766323. The next prime is 12220766381. The reversal of 12220766364 is 46366702221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10074222 + ... + 10075434.

It is an arithmetic number, because the mean of its divisors is an integer number (313474224).

Almost surely, 2^12220766364 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 12220766364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15046762752).

12220766364 is an abundant number, since it is smaller than the sum of its proper divisors (17872759140).

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

12220766364 is a wasteful number, since it uses less digits than its factorization.

12220766364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627 (or 1625 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 39.

The spelling of 12220766364 in words is "twelve billion, two hundred twenty million, seven hundred sixty-six thousand, three hundred sixty-four".