20203351870164 has 24 divisors (see below), whose sum is σ = 49622267751840. Its totient is φ = 6380005853664.

The previous prime is 20203351870109. The next prime is 20203351870223. The reversal of 20203351870164 is 46107815330202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44305595979 + ... + 44305596434.

It is an arithmetic number, because the mean of its divisors is an integer number (2067594489660).

Almost surely, 2^{20203351870164} is an apocalyptic number.

It is an amenable number.

20203351870164 is an abundant number, since it is smaller than the sum of its proper divisors (29418915881676).

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

20203351870164 is a wasteful number, since it uses less digits than its factorization.

20203351870164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88611192439 (or 88611192437 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 20203351870164 in words is "twenty trillion, two hundred three billion, three hundred fifty-one million, eight hundred seventy thousand, one hundred sixty-four".