20555168334 has 16 divisors (see below), whose sum is σ = 41487497040. Its totient is φ = 6788862720.

The previous prime is 20555168321. The next prime is 20555168341. The reversal of 20555168334 is 43386155502.

It is a congruent number.

It is an unprimeable number.

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, 15714307 + ... + 15715614.

It is an arithmetic number, because the mean of its divisors is an integer number (2592968565).

Almost surely, 2^20555168334 is an apocalyptic number.

20555168334 is an abundant number, since it is smaller than the sum of its proper divisors (20932328706).

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

20555168334 is a wasteful number, since it uses less digits than its factorization.

20555168334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31430035.

The product of its (nonzero) digits is 432000, while the sum is 42.

It can be divided in two parts, 20555168 and 334, that added together give a palindrome (20555502).

The spelling of 20555168334 in words is "twenty billion, five hundred fifty-five million, one hundred sixty-eight thousand, three hundred thirty-four".