20420089080 has 64 divisors (see below), whose sum is σ = 63923765760. Its totient is φ = 5208601728.

The previous prime is 20420089069. The next prime is 20420089097. The reversal of 20420089080 is 8098002402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3696532 + ... + 3702051.

It is an arithmetic number, because the mean of its divisors is an integer number (998808840).

Almost surely, 2^20420089080 is an apocalyptic number.

20420089080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20420089080 is an abundant number, since it is smaller than the sum of its proper divisors (43503676680).

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

20420089080 is a wasteful number, since it uses less digits than its factorization.

20420089080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7398620 (or 7398616 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The spelling of 20420089080 in words is "twenty billion, four hundred twenty million, eighty-nine thousand, eighty".