20163492911 has 12 divisors (see below), whose sum is σ = 22014408600. Its totient is φ = 18443548368.

The previous prime is 20163492893. The next prime is 20163492941. The reversal of 20163492911 is 11929436102.

It is a de Polignac number, because none of the positive numbers 2^k-20163492911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20163492941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 952541 + ... + 973478.

It is an arithmetic number, because the mean of its divisors is an integer number (1834534050).

Almost surely, 2^20163492911 is an apocalyptic number.

20163492911 is a deficient number, since it is larger than the sum of its proper divisors (1850915689).

20163492911 is a wasteful number, since it uses less digits than its factorization.

20163492911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926086 (or 1926067 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 20163492911 in words is "twenty billion, one hundred sixty-three million, four hundred ninety-two thousand, nine hundred eleven".