20620523352 has 128 divisors (see below), whose sum is σ = 60616200960. Its totient is φ = 5762987520.

The previous prime is 20620523351. The next prime is 20620523359. The reversal of 20620523352 is 25332502602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20620523351) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5945923 + ... + 5949389.

It is an arithmetic number, because the mean of its divisors is an integer number (473564070).

Almost surely, 2^20620523352 is an apocalyptic number.

20620523352 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20620523352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30308100480).

20620523352 is an abundant number, since it is smaller than the sum of its proper divisors (39995677608).

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

20620523352 is a wasteful number, since it uses less digits than its factorization.

20620523352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5233 (or 5229 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

The spelling of 20620523352 in words is "twenty billion, six hundred twenty million, five hundred twenty-three thousand, three hundred fifty-two".