20275663920201 has 80 divisors (see below), whose sum is σ = 32294488354128. Its totient is φ = 12633233817600.

The previous prime is 20275663920191. The next prime is 20275663920209. The reversal of 20275663920201 is 10202936657202.

20275663920201 is a `hidden beast` number, since 2 + 0 + 2 + 7 + 5 + 6 + 639 + 2 + 0 + 2 + 0 + 1 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 6717950793801 + 13557713126400 = 2591901^2 + 3682080^2 .

It is not a de Polignac number, because 20275663920201 - 2⁹ = 20275663919689 is a prime.

It is a super-2 number, since 2×20275663920201² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20275663920209) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 117058981 + ... + 117232061.

Almost surely, 2^{20275663920201} is an apocalyptic number.

It is an amenable number.

20275663920201 is a deficient number, since it is larger than the sum of its proper divisors (12018824433927).

20275663920201 is a wasteful number, since it uses less digits than its factorization.

20275663920201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173704 (or 173695 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 20275663920201 in words is "twenty trillion, two hundred seventy-five billion, six hundred sixty-three million, nine hundred twenty thousand, two hundred one".