20534305204435 has 16 divisors (see below), whose sum is σ = 26912566010880. Its totient is φ = 14916654735840.

The previous prime is 20534305204429. The next prime is 20534305204459. The reversal of 20534305204435 is 53440250343502.

It is not a de Polignac number, because 20534305204435 - 2¹¹ = 20534305202387 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217269987 + ... + 217364476.

It is an arithmetic number, because the mean of its divisors is an integer number (1682035375680).

Almost surely, 2^{20534305204435} is an apocalyptic number.

20534305204435 is a deficient number, since it is larger than the sum of its proper divisors (6378260806445).

20534305204435 is a wasteful number, since it uses less digits than its factorization.

20534305204435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434635338.

The product of its (nonzero) digits is 864000, while the sum is 40.

Adding to 20534305204435 its reverse (53440250343502), we get a palindrome (73974555547937).

The spelling of 20534305204435 in words is "twenty trillion, five hundred thirty-four billion, three hundred five million, two hundred four thousand, four hundred thirty-five".