20399941163 has 16 divisors (see below), whose sum is σ = 25536876480. Its totient is φ = 15889606656.

The previous prime is 20399941139. The next prime is 20399941187. The reversal of 20399941163 is 36114999302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20399941139) and next prime (20399941187).

It is not a de Polignac number, because 20399941163 - 2¹² = 20399937067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20399940163) 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, 2952206 + ... + 2959107.

It is an arithmetic number, because the mean of its divisors is an integer number (1596054780).

Almost surely, 2^20399941163 is an apocalyptic number.

20399941163 is a deficient number, since it is larger than the sum of its proper divisors (5136935317).

20399941163 is a wasteful number, since it uses less digits than its factorization.

20399941163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5911366.

The product of its (nonzero) digits is 314928, while the sum is 47.

The spelling of 20399941163 in words is "twenty billion, three hundred ninety-nine million, nine hundred forty-one thousand, one hundred sixty-three".