20200181918192 has 20 divisors (see below), whose sum is σ = 39176185360536. Its totient is φ = 10090198599360.

The previous prime is 20200181918171. The next prime is 20200181918197. The reversal of 20200181918192 is 29181918100202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200181918197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 618255638 + ... + 618288309.

Almost surely, 2^{20200181918192} is an apocalyptic number.

It is an amenable number.

20200181918192 is a deficient number, since it is larger than the sum of its proper divisors (18976003442344).

20200181918192 is a wasteful number, since it uses less digits than its factorization.

20200181918192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236544976 (or 1236544970 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 44.

The spelling of 20200181918192 in words is "twenty trillion, two hundred billion, one hundred eighty-one million, nine hundred eighteen thousand, one hundred ninety-two".