20122553352 has 128 divisors (see below), whose sum is σ = 57507563520. Its totient is φ = 5808000000.

The previous prime is 20122553333. The next prime is 20122553357. The reversal of 20122553352 is 25335522102.

It is not an unprimeable number, because it can be changed into a prime (20122553357) 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, 1456477 + ... + 1470227.

It is an arithmetic number, because the mean of its divisors is an integer number (449277840).

Almost surely, 2^20122553352 is an apocalyptic number.

20122553352 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 20122553352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28753781760).

20122553352 is an abundant number, since it is smaller than the sum of its proper divisors (37385010168).

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

20122553352 is a wasteful number, since it uses less digits than its factorization.

20122553352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14035 (or 14031 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The spelling of 20122553352 in words is "twenty billion, one hundred twenty-two million, five hundred fifty-three thousand, three hundred fifty-two".