20535065292 has 48 divisors (see below), whose sum is σ = 54769594880. Its totient is φ = 5866152192.

The previous prime is 20535065281. The next prime is 20535065293. The reversal of 20535065292 is 29256053502.

It is a self number, because there is not a number n which added to its sum of digits gives 20535065292.

It is not an unprimeable number, because it can be changed into a prime (20535065293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 567684 + ... + 602772.

Almost surely, 2^20535065292 is an apocalyptic number.

It is an amenable number.

20535065292 is an abundant number, since it is smaller than the sum of its proper divisors (34234529588).

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

20535065292 is a wasteful number, since it uses less digits than its factorization.

20535065292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42070 (or 42068 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 39.

The spelling of 20535065292 in words is "twenty billion, five hundred thirty-five million, sixty-five thousand, two hundred ninety-two".