20022538752 has 120 divisors (see below), whose sum is σ = 59348702556. Its totient is φ = 6493741056.

The previous prime is 20022538747. The next prime is 20022538793. The reversal of 20022538752 is 25783522002.

It is a happy number.

20022538752 is a `hidden beast` number, since 2 + 0 + 0 + 225 + 387 + 52 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15064125696 + 4958413056 = 122736^2 + 70416^2 .

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 11 ways as a sum of consecutive naturals, for example, 111778 + ... + 229214.

Almost surely, 2^20022538752 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 20022538752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29674351278).

20022538752 is an abundant number, since it is smaller than the sum of its proper divisors (39326163804).

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

20022538752 is a wasteful number, since it uses less digits than its factorization.

20022538752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117498 (or 117479 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The spelling of 20022538752 in words is "twenty billion, twenty-two million, five hundred thirty-eight thousand, seven hundred fifty-two".