16493990911 has 2 divisors, whose sum is σ = 16493990912. Its totient is φ = 16493990910.

The previous prime is 16493990881. The next prime is 16493990939. The reversal of 16493990911 is 11909939461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16493990911 - 2⁹ = 16493990399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16493990011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8246995455 + 8246995456.

It is an arithmetic number, because the mean of its divisors is an integer number (8246995456).

Almost surely, 2^16493990911 is an apocalyptic number.

16493990911 is a deficient number, since it is larger than the sum of its proper divisors (1).

16493990911 is an equidigital number, since it uses as much as digits as its factorization.

16493990911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 472392, while the sum is 52.

The spelling of 16493990911 in words is "sixteen billion, four hundred ninety-three million, nine hundred ninety thousand, nine hundred eleven".