20196838584243 has 12 divisors (see below), whose sum is σ = 29173328932800. Its totient is φ = 13464504758736.

The previous prime is 20196838584217. The next prime is 20196838584277. The reversal of 20196838584243 is 34248583869102.

20196838584243 is a `hidden beast` number, since 2 + 0 + 1 + 9 + 6 + 8 + 3 + 8 + 584 + 2 + 43 = 666.

It is not a de Polignac number, because 20196838584243 - 2³³ = 20188248649651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20196838584443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2100643 + ... + 6693756.

It is an arithmetic number, because the mean of its divisors is an integer number (2431110744400).

Almost surely, 2^{20196838584243} is an apocalyptic number.

20196838584243 is a deficient number, since it is larger than the sum of its proper divisors (8976490348557).

20196838584243 is a wasteful number, since it uses less digits than its factorization.

20196838584243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9049578 (or 9049575 counting only the distinct ones).

The product of its (nonzero) digits is 79626240, while the sum is 63.

The spelling of 20196838584243 in words is "twenty trillion, one hundred ninety-six billion, eight hundred thirty-eight million, five hundred eighty-four thousand, two hundred forty-three".