20803189344 has 96 divisors (see below), whose sum is σ = 64422844416. Its totient is φ = 5752028160.

The previous prime is 20803189327. The next prime is 20803189367. The reversal of 20803189344 is 44398130802.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 20803189296 and 20803189305.

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, 478477 + ... + 520140.

It is an arithmetic number, because the mean of its divisors is an integer number (671071296).

Almost surely, 2^20803189344 is an apocalyptic number.

20803189344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20803189344 is an abundant number, since it is smaller than the sum of its proper divisors (43619655072).

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

20803189344 is a wasteful number, since it uses less digits than its factorization.

20803189344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998668 (or 998660 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 20803189344 in words is "twenty billion, eight hundred three million, one hundred eighty-nine thousand, three hundred forty-four".