20045455055 has 32 divisors (see below), whose sum is σ = 25665413760. Its totient is φ = 14977290240.

The previous prime is 20045455051. The next prime is 20045455057. The reversal of 20045455055 is 55055454002.

It is not a de Polignac number, because 20045455055 - 2² = 20045455051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20045455051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15173795 + ... + 15175115.

It is an arithmetic number, because the mean of its divisors is an integer number (802044180).

Almost surely, 2^20045455055 is an apocalyptic number.

20045455055 is a deficient number, since it is larger than the sum of its proper divisors (5619958705).

20045455055 is a wasteful number, since it uses less digits than its factorization.

20045455055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579.

The product of its (nonzero) digits is 100000, while the sum is 35.

The spelling of 20045455055 in words is "twenty billion, forty-five million, four hundred fifty-five thousand, fifty-five".