20032820454 has 16 divisors (see below), whose sum is σ = 40614486192. Its totient is φ = 6586132608.

The previous prime is 20032820413. The next prime is 20032820491. The reversal of 20032820454 is 45402823002.

It is a super-2 number, since 2×20032820454² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22868079 + ... + 22868954.

It is an arithmetic number, because the mean of its divisors is an integer number (2538405387).

Almost surely, 2^20032820454 is an apocalyptic number.

20032820454 is an abundant number, since it is smaller than the sum of its proper divisors (20581665738).

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

20032820454 is a wasteful number, since it uses less digits than its factorization.

20032820454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45737111.

The product of its (nonzero) digits is 15360, while the sum is 30.

The spelling of 20032820454 in words is "twenty billion, thirty-two million, eight hundred twenty thousand, four hundred fifty-four".