20454455535 has 32 divisors (see below), whose sum is σ = 33014341632. Its totient is φ = 10813461120.

The previous prime is 20454455521. The next prime is 20454455569. The reversal of 20454455535 is 53555445402.

It is not a de Polignac number, because 20454455535 - 2⁵ = 20454455503 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 (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2455197 + ... + 2463513.

It is an arithmetic number, because the mean of its divisors is an integer number (1031698176).

Almost surely, 2^20454455535 is an apocalyptic number.

20454455535 is a deficient number, since it is larger than the sum of its proper divisors (12559886097).

20454455535 is a wasteful number, since it uses less digits than its factorization.

20454455535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9743.

The product of its (nonzero) digits is 1200000, while the sum is 42.

The spelling of 20454455535 in words is "twenty billion, four hundred fifty-four million, four hundred fifty-five thousand, five hundred thirty-five".