20802088920 has 64 divisors (see below), whose sum is σ = 62723121120. Its totient is φ = 5519058944.

The previous prime is 20802088907. The next prime is 20802088949. The reversal of 20802088920 is 2988020802.

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, 416337 + ... + 463616.

Almost surely, 2^20802088920 is an apocalyptic number.

20802088920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20802088920 is an abundant number, since it is smaller than the sum of its proper divisors (41921032200).

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

20802088920 is a wasteful number, since it uses less digits than its factorization.

20802088920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880164 (or 880160 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The spelling of 20802088920 in words is "twenty billion, eight hundred two million, eighty-eight thousand, nine hundred twenty".