22645072072 has 48 divisors (see below), whose sum is σ = 49490300160. Its totient is φ = 9685652256.

The previous prime is 22645072061. The next prime is 22645072103. The reversal of 22645072072 is 27027054622.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139753 + ... + 254599.

It is an arithmetic number, because the mean of its divisors is an integer number (1031047920).

Almost surely, 2^22645072072 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 22645072072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24745150080).

22645072072 is an abundant number, since it is smaller than the sum of its proper divisors (26845228088).

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

22645072072 is a wasteful number, since it uses less digits than its factorization.

22645072072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115370 (or 115359 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 37.

The spelling of 22645072072 in words is "twenty-two billion, six hundred forty-five million, seventy-two thousand, seventy-two".