372665221808 has 80 divisors (see below), whose sum is σ = 813397939200. Its totient is φ = 163866451200.

The previous prime is 372665221757. The next prime is 372665221823. The reversal of 372665221808 is 808122566273.

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, 16121843 + ... + 16144941.

It is an arithmetic number, because the mean of its divisors is an integer number (10167474240).

Almost surely, 2^372665221808 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 372665221808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (406698969600).

372665221808 is an abundant number, since it is smaller than the sum of its proper divisors (440732717392).

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

372665221808 is a wasteful number, since it uses less digits than its factorization.

372665221808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26106 (or 26100 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 372665221808 in words is "three hundred seventy-two billion, six hundred sixty-five million, two hundred twenty-one thousand, eight hundred eight".