20633634055 has 16 divisors (see below), whose sum is σ = 24997024800. Its totient is φ = 16349247360.

The previous prime is 20633634031. The next prime is 20633634089. The reversal of 20633634055 is 55043633602.

It is not a de Polignac number, because 20633634055 - 2¹³ = 20633625863 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1880776 + ... + 1891714.

It is an arithmetic number, because the mean of its divisors is an integer number (1562314050).

Almost surely, 2^20633634055 is an apocalyptic number.

20633634055 is a deficient number, since it is larger than the sum of its proper divisors (4363390745).

20633634055 is a wasteful number, since it uses less digits than its factorization.

20633634055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14514.

The product of its (nonzero) digits is 194400, while the sum is 37.

The spelling of 20633634055 in words is "twenty billion, six hundred thirty-three million, six hundred thirty-four thousand, fifty-five".