22396320072 has 128 divisors (see below), whose sum is σ = 74841600000. Its totient is φ = 6062154048.

The previous prime is 22396320041. The next prime is 22396320083. The reversal of 22396320072 is 27002369322.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 361072 + ... + 418527.

It is an arithmetic number, because the mean of its divisors is an integer number (584700000).

Almost surely, 2^22396320072 is an apocalyptic number.

It is an amenable number.

22396320072 is an abundant number, since it is smaller than the sum of its proper divisors (52445279928).

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

22396320072 is a wasteful number, since it uses less digits than its factorization.

22396320072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779640 (or 779630 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

Adding to 22396320072 its reverse (27002369322), we get a palindrome (49398689394).

The spelling of 22396320072 in words is "twenty-two billion, three hundred ninety-six million, three hundred twenty thousand, seventy-two".