16116111005 has 4 divisors (see below), whose sum is σ = 19339333212. Its totient is φ = 12892888800.

The previous prime is 16116110987. The next prime is 16116111041. The reversal of 16116111005 is 50011161161.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2000057284 + 14116053721 = 44722^2 + 118811^2 .

It is not a de Polignac number, because 16116111005 - 2¹⁶ = 16116045469 is a prime.

It is a super-2 number, since 2×16116111005² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1611611096 + ... + 1611611105.

It is an arithmetic number, because the mean of its divisors is an integer number (4834833303).

Almost surely, 2^16116111005 is an apocalyptic number.

It is an amenable number.

16116111005 is a deficient number, since it is larger than the sum of its proper divisors (3223222207).

16116111005 is an equidigital number, since it uses as much as digits as its factorization.

16116111005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3223222206.

The product of its (nonzero) digits is 180, while the sum is 23.

Adding to 16116111005 its reverse (50011161161), we get a palindrome (66127272166).

The spelling of 16116111005 in words is "sixteen billion, one hundred sixteen million, one hundred eleven thousand, five".