16749818311 has 4 divisors (see below), whose sum is σ = 17106197472. Its totient is φ = 16393439152.

The previous prime is 16749818297. The next prime is 16749818321. The reversal of 16749818311 is 11381894761.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16749818311 - 2²³ = 16741429703 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16749818321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178189510 + ... + 178189603.

It is an arithmetic number, because the mean of its divisors is an integer number (4276549368).

Almost surely, 2^16749818311 is an apocalyptic number.

16749818311 is a deficient number, since it is larger than the sum of its proper divisors (356379161).

16749818311 is an equidigital number, since it uses as much as digits as its factorization.

16749818311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356379160.

The product of its digits is 290304, while the sum is 49.

The spelling of 16749818311 in words is "sixteen billion, seven hundred forty-nine million, eight hundred eighteen thousand, three hundred eleven".