20454455541 has 16 divisors (see below), whose sum is σ = 29655656576. Its totient is φ = 12465147456.

The previous prime is 20454455521. The next prime is 20454455569. The reversal of 20454455541 is 14555445402.

It is not a de Polignac number, because 20454455541 - 2²⁷ = 20320237813 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 20454455541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20454455501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2541970 + ... + 2550003.

It is an arithmetic number, because the mean of its divisors is an integer number (1853478536).

Almost surely, 2^20454455541 is an apocalyptic number.

It is an amenable number.

20454455541 is a deficient number, since it is larger than the sum of its proper divisors (9201201035).

20454455541 is a wasteful number, since it uses less digits than its factorization.

20454455541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5092092.

The product of its (nonzero) digits is 320000, while the sum is 39.

The spelling of 20454455541 in words is "twenty billion, four hundred fifty-four million, four hundred fifty-five thousand, five hundred forty-one".