11616071111 has 4 divisors (see below), whose sum is σ = 11616347424. Its totient is φ = 11615794800.

The previous prime is 11616071107. The next prime is 11616071113. The reversal of 11616071111 is 11117061611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11117061611 = 103 ⋅107932637.

It is a cyclic number.

It is not a de Polignac number, because 11616071111 - 2² = 11616071107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11616071113) 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, 60575 + ... + 164016.

It is an arithmetic number, because the mean of its divisors is an integer number (2904086856).

Almost surely, 2^11616071111 is an apocalyptic number.

11616071111 is a deficient number, since it is larger than the sum of its proper divisors (276313).

11616071111 is an equidigital number, since it uses as much as digits as its factorization.

11616071111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276312.

The product of its (nonzero) digits is 252, while the sum is 26.

The spelling of 11616071111 in words is "eleven billion, six hundred sixteen million, seventy-one thousand, one hundred eleven".