20393172184352 has 96 divisors (see below), whose sum is σ = 46512184461120. Its totient is φ = 8704033873920.

The previous prime is 20393172184349. The next prime is 20393172184367. The reversal of 20393172184352 is 25348127139302.

It is a self number, because there is not a number n which added to its sum of digits gives 20393172184352.

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, 12736373 + ... + 14247860.

It is an arithmetic number, because the mean of its divisors is an integer number (484501921470).

Almost surely, 2^{20393172184352} is an apocalyptic number.

20393172184352 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20393172184352 is an abundant number, since it is smaller than the sum of its proper divisors (26119012276768).

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

20393172184352 is a wasteful number, since it uses less digits than its factorization.

20393172184352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26984386 (or 26984378 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 20393172184352 in words is "twenty trillion, three hundred ninety-three billion, one hundred seventy-two million, one hundred eighty-four thousand, three hundred fifty-two".