20338907659375 has 24 divisors (see below), whose sum is σ = 25433230262832. Its totient is φ = 16263943080000.

The previous prime is 20338907659331. The next prime is 20338907659501. The reversal of 20338907659375 is 57395670983302.

It is a de Polignac number, because none of the positive numbers 2^k-20338907659375 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20338907659375.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5648899 + ... + 8519851.

It is an arithmetic number, because the mean of its divisors is an integer number (1059717927618).

Almost surely, 2^{20338907659375} is an apocalyptic number.

20338907659375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20338907659375 is a deficient number, since it is larger than the sum of its proper divisors (5094322603457).

20338907659375 is an frugal number, since it uses more digits than its factorization.

20338907659375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2873245 (or 2873225 counting only the distinct ones).

The product of its (nonzero) digits is 257191200, while the sum is 67.

The spelling of 20338907659375 in words is "twenty trillion, three hundred thirty-eight billion, nine hundred seven million, six hundred fifty-nine thousand, three hundred seventy-five".