20369033880 has 128 divisors (see below), whose sum is σ = 66486571200. Its totient is φ = 4962189312.

The previous prime is 20369033863. The next prime is 20369033899. The reversal of 20369033880 is 8833096302.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 84016 + ... + 218624.

Almost surely, 2^20369033880 is an apocalyptic number.

20369033880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20369033880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33243285600).

20369033880 is an abundant number, since it is smaller than the sum of its proper divisors (46117537320).

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

20369033880 is a wasteful number, since it uses less digits than its factorization.

20369033880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134733 (or 134729 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 20369033880 in words is "twenty billion, three hundred sixty-nine million, thirty-three thousand, eight hundred eighty".