20775280086522 has 24 divisors (see below), whose sum is σ = 48475653535764. Its totient is φ = 6392393872704.

The previous prime is 20775280086521. The next prime is 20775280086581. The reversal of 20775280086522 is 22568008257702.

20775280086522 is a `hidden beast` number, since 20 + 7 + 75 + 28 + 0 + 0 + 8 + 6 + 522 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17602396461441 + 3172883625081 = 4195521^2 + 1781259^2 .

It is a super-2 number, since 2×20775280086522² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20775280086521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44391623883 + ... + 44391624350.

Almost surely, 2^{20775280086522} is an apocalyptic number.

20775280086522 is an abundant number, since it is smaller than the sum of its proper divisors (27700373449242).

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

20775280086522 is a wasteful number, since it uses less digits than its factorization.

20775280086522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88783248254 (or 88783248251 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 54.

The spelling of 20775280086522 in words is "twenty trillion, seven hundred seventy-five billion, two hundred eighty million, eighty-six thousand, five hundred twenty-two".