20171916014 has 16 divisors (see below), whose sum is σ = 30362452560. Its totient is φ = 10051134720.

The previous prime is 20171916013. The next prime is 20171916047. The reversal of 20171916014 is 41061917102.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20171916013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1255049 + ... + 1271019.

It is an arithmetic number, because the mean of its divisors is an integer number (1897653285).

Almost surely, 2^20171916014 is an apocalyptic number.

20171916014 is a deficient number, since it is larger than the sum of its proper divisors (10190536546).

20171916014 is a wasteful number, since it uses less digits than its factorization.

20171916014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18115.

The product of its (nonzero) digits is 3024, while the sum is 32.

The spelling of 20171916014 in words is "twenty billion, one hundred seventy-one million, nine hundred sixteen thousand, fourteen".