16868033191 has 2 divisors, whose sum is σ = 16868033192. Its totient is φ = 16868033190.

The previous prime is 16868033141. The next prime is 16868033201. The reversal of 16868033191 is 19133086861.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16868033191 - 2²¹ = 16865936039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16868033141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8434016595 + 8434016596.

It is an arithmetic number, because the mean of its divisors is an integer number (8434016596).

Almost surely, 2^16868033191 is an apocalyptic number.

16868033191 is a deficient number, since it is larger than the sum of its proper divisors (1).

16868033191 is an equidigital number, since it uses as much as digits as its factorization.

16868033191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 46.

The spelling of 16868033191 in words is "sixteen billion, eight hundred sixty-eight million, thirty-three thousand, one hundred ninety-one".