20432558195 has 32 divisors (see below), whose sum is σ = 28314009600. Its totient is φ = 13865354496.

The previous prime is 20432558171. The next prime is 20432558227. The reversal of 20432558195 is 59185523402.

It is not a de Polignac number, because 20432558195 - 2¹⁸ = 20432296051 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1812386 + ... + 1823624.

It is an arithmetic number, because the mean of its divisors is an integer number (884812800).

Almost surely, 2^20432558195 is an apocalyptic number.

20432558195 is a deficient number, since it is larger than the sum of its proper divisors (7881451405).

20432558195 is a wasteful number, since it uses less digits than its factorization.

20432558195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11787.

The product of its (nonzero) digits is 432000, while the sum is 44.

The spelling of 20432558195 in words is "twenty billion, four hundred thirty-two million, five hundred fifty-eight thousand, one hundred ninety-five".