20958824322 has 18 divisors (see below), whose sum is σ = 45412116867. Its totient is φ = 6986070036.

The previous prime is 20958824281. The next prime is 20958824329. The reversal of 20958824322 is 22342885902.

20958824322 is a `hidden beast` number, since 2 + 0 + 9 + 588 + 2 + 43 + 22 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10479412161 + 10479412161 = 102369^2 + 102369^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=102369.

It is not an unprimeable number, because it can be changed into a prime (20958824329) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 597153 + ... + 631275.

Almost surely, 2^20958824322 is an apocalyptic number.

20958824322 is an abundant number, since it is smaller than the sum of its proper divisors (24453292545).

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

20958824322 is an frugal number, since it uses more digits than its factorization.

20958824322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68254 (or 34128 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 20958824322 in words is "twenty billion, nine hundred fifty-eight million, eight hundred twenty-four thousand, three hundred twenty-two".