20204746163 has 16 divisors (see below), whose sum is σ = 23269953024. Its totient is φ = 17184356160.

The previous prime is 20204746157. The next prime is 20204746181. The reversal of 20204746163 is 36164740202.

It is a cyclic number.

It is not a de Polignac number, because 20204746163 - 2²⁰ = 20203697587 is a prime.

It is a super-2 number, since 2×20204746163² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20204746123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3747956 + ... + 3753342.

It is an arithmetic number, because the mean of its divisors is an integer number (1454372064).

Almost surely, 2^20204746163 is an apocalyptic number.

20204746163 is a deficient number, since it is larger than the sum of its proper divisors (3065206861).

20204746163 is a wasteful number, since it uses less digits than its factorization.

20204746163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9442.

The product of its (nonzero) digits is 48384, while the sum is 35.

The spelling of 20204746163 in words is "twenty billion, two hundred four million, seven hundred forty-six thousand, one hundred sixty-three".