20173432295488 has 56 divisors (see below), whose sum is σ = 40326128693784. Its totient is φ = 10012526284800.

The previous prime is 20173432295453. The next prime is 20173432295539. The reversal of 20173432295488 is 88459223437102.

It can be written as a sum of positive squares in 4 ways, for example, as 10016769245184 + 10156663050304 = 3164928^2 + 3186952^2 .

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, 186011518 + ... + 186119938.

Almost surely, 2^{20173432295488} is an apocalyptic number.

It is an amenable number.

20173432295488 is a deficient number, since it is larger than the sum of its proper divisors (20152696398296).

20173432295488 is a wasteful number, since it uses less digits than its factorization.

20173432295488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129791 (or 129781 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 58.

The spelling of 20173432295488 in words is "twenty trillion, one hundred seventy-three billion, four hundred thirty-two million, two hundred ninety-five thousand, four hundred eighty-eight".