20633106558 has 16 divisors (see below), whose sum is σ = 41446417680. Its totient is φ = 6847668096.

The previous prime is 20633106553. The next prime is 20633106619. The reversal of 20633106558 is 85560133602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20633106553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7507035 + ... + 7509782.

It is an arithmetic number, because the mean of its divisors is an integer number (2590401105).

Almost surely, 2^20633106558 is an apocalyptic number.

20633106558 is an abundant number, since it is smaller than the sum of its proper divisors (20813311122).

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

20633106558 is a wasteful number, since it uses less digits than its factorization.

20633106558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15017051.

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 20633106558 in words is "twenty billion, six hundred thirty-three million, one hundred six thousand, five hundred fifty-eight".