20960221952 has 72 divisors (see below), whose sum is σ = 43254244992. Its totient is φ = 10126540800.

The previous prime is 20960221951. The next prime is 20960221957. The reversal of 20960221952 is 25912206902.

It is not an unprimeable number, because it can be changed into a prime (20960221951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6513848 + ... + 6517064.

Almost surely, 2^20960221952 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 20960221952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21627122496).

20960221952 is an abundant number, since it is smaller than the sum of its proper divisors (22294023040).

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

20960221952 is an equidigital number, since it uses as much as digits as its factorization.

20960221952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4085 (or 4071 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 20960221952 in words is "twenty billion, nine hundred sixty million, two hundred twenty-one thousand, nine hundred fifty-two".