20535214086 has 24 divisors (see below), whose sum is σ = 44951658024. Its totient is φ = 6774503040.

The previous prime is 20535214027. The next prime is 20535214087. The reversal of 20535214086 is 68041253502.

20535214086 is a `hidden beast` number, since 2 + 0 + 53 + 521 + 4 + 0 + 86 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 20535214086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20535214087) 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, 5878900 + ... + 5882391.

It is an arithmetic number, because the mean of its divisors is an integer number (1872985751).

Almost surely, 2^20535214086 is an apocalyptic number.

20535214086 is an abundant number, since it is smaller than the sum of its proper divisors (24416443938).

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

20535214086 is a wasteful number, since it uses less digits than its factorization.

20535214086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11761396 (or 11761393 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 20535214086 its reverse (68041253502), we get a palindrome (88576467588).

The spelling of 20535214086 in words is "twenty billion, five hundred thirty-five million, two hundred fourteen thousand, eighty-six".