20832354171908 has 6 divisors (see below), whose sum is σ = 36456619800846. Its totient is φ = 10416177085952.

The previous prime is 20832354171857. The next prime is 20832354171913. The reversal of 20832354171908 is 80917145323802.

It can be written as a sum of positive squares in only one way, i.e., 15294841583044 + 5537512588864 = 3910862^2 + 2353192^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20832354171908.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2604044271485 + ... + 2604044271492.

It is an arithmetic number, because the mean of its divisors is an integer number (6076103300141).

Almost surely, 2^{20832354171908} is an apocalyptic number.

It is an amenable number.

20832354171908 is a deficient number, since it is larger than the sum of its proper divisors (15624265628938).

20832354171908 is a wasteful number, since it uses less digits than its factorization.

20832354171908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5208088542981 (or 5208088542979 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 20832354171908 in words is "twenty trillion, eight hundred thirty-two billion, three hundred fifty-four million, one hundred seventy-one thousand, nine hundred eight".