16213097811 has 4 divisors (see below), whose sum is σ = 21617463752. Its totient is φ = 10808731872.

The previous prime is 16213097807. The next prime is 16213097837. The reversal of 16213097811 is 11879031261.

16213097811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11879031261 = 3 ⋅3959677087.

It is not a de Polignac number, because 16213097811 - 2² = 16213097807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16213097811.

It is not an unprimeable number, because it can be changed into a prime (16213097011) 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 3 ways as a sum of consecutive naturals, for example, 2702182966 + ... + 2702182971.

It is an arithmetic number, because the mean of its divisors is an integer number (5404365938).

Almost surely, 2^16213097811 is an apocalyptic number.

16213097811 is a deficient number, since it is larger than the sum of its proper divisors (5404365941).

16213097811 is an equidigital number, since it uses as much as digits as its factorization.

16213097811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5404365940.

The product of its (nonzero) digits is 18144, while the sum is 39.

The spelling of 16213097811 in words is "sixteen billion, two hundred thirteen million, ninety-seven thousand, eight hundred eleven".