202000018191 has 32 divisors (see below), whose sum is σ = 272209766400. Its totient is φ = 133238165760.

The previous prime is 202000018183. The next prime is 202000018193. The reversal of 202000018191 is 191810000202.

It is not a de Polignac number, because 202000018191 - 2³ = 202000018183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202000018193) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129569470 + ... + 129571028.

It is an arithmetic number, because the mean of its divisors is an integer number (8506555200).

Almost surely, 2^202000018191 is an apocalyptic number.

202000018191 is a deficient number, since it is larger than the sum of its proper divisors (70209748209).

202000018191 is a wasteful number, since it uses less digits than its factorization.

202000018191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2839.

The product of its (nonzero) digits is 288, while the sum is 24.

Adding to 202000018191 its reverse (191810000202), we get a palindrome (393810018393).

The spelling of 202000018191 in words is "two hundred two billion, eighteen thousand, one hundred ninety-one".