22101755652 has 72 divisors (see below), whose sum is σ = 57249672480. Its totient is φ = 7187007360.

The previous prime is 22101755623. The next prime is 22101755653. The reversal of 22101755652 is 25655710122.

22101755652 is a `hidden beast` number, since 2 + 21 + 0 + 1 + 75 + 565 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (22101755653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 238528 + ... + 317960.

It is an arithmetic number, because the mean of its divisors is an integer number (795134340).

Almost surely, 2^22101755652 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 22101755652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28624836240).

22101755652 is an abundant number, since it is smaller than the sum of its proper divisors (35147916828).

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

22101755652 is a wasteful number, since it uses less digits than its factorization.

22101755652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79633 (or 79628 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The spelling of 22101755652 in words is "twenty-two billion, one hundred one million, seven hundred fifty-five thousand, six hundred fifty-two".