20535943122 has 78 divisors (see below), whose sum is σ = 46540650663. Its totient is φ = 6796067508.

The previous prime is 20535943121. The next prime is 20535943163. The reversal of 20535943122 is 22134953502.

20535943122 is a `hidden beast` number, since 2 + 0 + 53 + 594 + 3 + 12 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10267971561 + 10267971561 = 101331^2 + 101331^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=101331.

It is not an unprimeable number, because it can be changed into a prime (20535943121) by changing a digit.

It is a polite number, since it can be written in 38 ways as a sum of consecutive naturals, for example, 147740529 + ... + 147740667.

Almost surely, 2^20535943122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20535943122

20535943122 is an abundant number, since it is smaller than the sum of its proper divisors (26004707541).

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

20535943122 is an frugal number, since it uses more digits than its factorization.

20535943122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 20535943122 in words is "twenty billion, five hundred thirty-five million, nine hundred forty-three thousand, one hundred twenty-two".