20180162199636 has 18 divisors (see below), whose sum is σ = 51010965560282. Its totient is φ = 6726720733200.

The previous prime is 20180162199581. The next prime is 20180162199649. The reversal of 20180162199636 is 63699126108102.

20180162199636 is a `hidden beast` number, since 2 + 0 + 1 + 8 + 0 + 1 + 621 + 9 + 9 + 6 + 3 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12055131202500 + 8125030997136 = 3472050^2 + 2850444^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 280280030515 + ... + 280280030586.

Almost surely, 2^{20180162199636} is an apocalyptic number.

It is an amenable number.

20180162199636 is an abundant number, since it is smaller than the sum of its proper divisors (30830803360646).

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

20180162199636 is a wasteful number, since it uses less digits than its factorization.

20180162199636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560560061111 (or 560560061106 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 20180162199636 in words is "twenty trillion, one hundred eighty billion, one hundred sixty-two million, one hundred ninety-nine thousand, six hundred thirty-six".