16211005718 has 4 divisors (see below), whose sum is σ = 24316508580. Its totient is φ = 8105502858.

The previous prime is 16211005717. The next prime is 16211005757. The reversal of 16211005718 is 81750011261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81750011261 = 12329 ⋅6630709.

It is a super-3 number, since 3×16211005718³ (a number of 32 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16211005717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4052751428 + ... + 4052751431.

It is an arithmetic number, because the mean of its divisors is an integer number (6079127145).

Almost surely, 2^16211005718 is an apocalyptic number.

16211005718 is a deficient number, since it is larger than the sum of its proper divisors (8105502862).

16211005718 is an equidigital number, since it uses as much as digits as its factorization.

16211005718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8105502861.

The product of its (nonzero) digits is 3360, while the sum is 32.

Adding to 16211005718 its reverse (81750011261), we get a palindrome (97961016979).

The spelling of 16211005718 in words is "sixteen billion, two hundred eleven million, five thousand, seven hundred eighteen".