20807298020 has 24 divisors (see below), whose sum is σ = 43723205568. Its totient is φ = 8317608800.

The previous prime is 20807297981. The next prime is 20807298047. The reversal of 20807298020 is 2089270802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299696 + ... + 362535.

It is an arithmetic number, because the mean of its divisors is an integer number (1821800232).

Almost surely, 2^20807298020 is an apocalyptic number.

20807298020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20807298020 is an abundant number, since it is smaller than the sum of its proper divisors (22915907548).

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

20807298020 is a wasteful number, since it uses less digits than its factorization.

20807298020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663811 (or 663809 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The spelling of 20807298020 in words is "twenty billion, eight hundred seven million, two hundred ninety-eight thousand, twenty".