20196838584258 has 32 divisors (see below), whose sum is σ = 47756071532160. Its totient is φ = 5571541678080.

The previous prime is 20196838584217. The next prime is 20196838584277. The reversal of 20196838584258 is 85248583869102.

It is a junction number, because it is equal to n+sod(n) for n = 20196838584192 and 20196838584201.

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, 8290983423 + ... + 8290985858.

It is an arithmetic number, because the mean of its divisors is an integer number (1492377235380).

Almost surely, 2^{20196838584258} is an apocalyptic number.

20196838584258 is an abundant number, since it is smaller than the sum of its proper divisors (27559232947902).

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

20196838584258 is a wasteful number, since it uses less digits than its factorization.

20196838584258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16581969322.

The product of its (nonzero) digits is 265420800, while the sum is 69.

The spelling of 20196838584258 in words is "twenty trillion, one hundred ninety-six billion, eight hundred thirty-eight million, five hundred eighty-four thousand, two hundred fifty-eight".