20801370575320 has 32 divisors (see below), whose sum is σ = 46803381405120. Its totient is φ = 8320495321600.

The previous prime is 20801370575309. The next prime is 20801370575327. The reversal of 20801370575320 is 2357507310802.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20801370575327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5051424 + ... + 8192656.

It is an arithmetic number, because the mean of its divisors is an integer number (1462605668910).

Almost surely, 2^{20801370575320} is an apocalyptic number.

20801370575320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20801370575320 is an abundant number, since it is smaller than the sum of its proper divisors (26002010829800).

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

20801370575320 is a wasteful number, since it uses less digits than its factorization.

20801370575320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3306795 (or 3306791 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 20801370575320 in words is "twenty trillion, eight hundred one billion, three hundred seventy million, five hundred seventy-five thousand, three hundred twenty".