16111211707 has 4 divisors (see below), whose sum is σ = 16114997056. Its totient is φ = 16107426360.

The previous prime is 16111211689. The next prime is 16111211759. The reversal of 16111211707 is 70711211161.

16111211707 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: 70711211161 = 3527 ⋅20048543.

It is a cyclic number.

It is not a de Polignac number, because 16111211707 - 2¹¹ = 16111209659 is a prime.

It is a super-2 number, since 2×16111211707² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16111211807) 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, 1886283 + ... + 1894804.

It is an arithmetic number, because the mean of its divisors is an integer number (4028749264).

Almost surely, 2^16111211707 is an apocalyptic number.

16111211707 is a deficient number, since it is larger than the sum of its proper divisors (3785349).

16111211707 is an equidigital number, since it uses as much as digits as its factorization.

16111211707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3785348.

The product of its (nonzero) digits is 588, while the sum is 28.

Adding to 16111211707 its reverse (70711211161), we get a palindrome (86822422868).

The spelling of 16111211707 in words is "sixteen billion, one hundred eleven million, two hundred eleven thousand, seven hundred seven".