20045500454 has 48 divisors (see below), whose sum is σ = 36563734368. Its totient is φ = 8202636288.

The previous prime is 20045500451. The next prime is 20045500459. The reversal of 20045500454 is 45400554002.

It is a super-2 number, since 2×20045500454² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20045500451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1292852 + ... + 1308264.

It is an arithmetic number, because the mean of its divisors is an integer number (761744466).

Almost surely, 2^20045500454 is an apocalyptic number.

20045500454 is a deficient number, since it is larger than the sum of its proper divisors (16518233914).

20045500454 is a wasteful number, since it uses less digits than its factorization.

20045500454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16029 (or 16022 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 29.

The spelling of 20045500454 in words is "twenty billion, forty-five million, five hundred thousand, four hundred fifty-four".