20552530960 has 160 divisors (see below), whose sum is σ = 52453392768. Its totient is φ = 7443394560.

The previous prime is 20552530951. The next prime is 20552530993. The reversal of 20552530960 is 6903525502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16018479 + ... + 16019761.

Almost surely, 2^20552530960 is an apocalyptic number.

20552530960 is a gapful number since it is divisible by the number (20) 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 20552530960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26226696384).

20552530960 is an abundant number, since it is smaller than the sum of its proper divisors (31900861808).

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

20552530960 is a wasteful number, since it uses less digits than its factorization.

20552530960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593 (or 1587 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 37.

The spelling of 20552530960 in words is "twenty billion, five hundred fifty-two million, five hundred thirty thousand, nine hundred sixty".