12005616711 has 16 divisors (see below), whose sum is σ = 17758696320. Its totient is φ = 7152805920.

The previous prime is 12005616683. The next prime is 12005616713. The reversal of 12005616711 is 11761650021.

It is not a de Polignac number, because 12005616711 - 2¹⁹ = 12005092423 is a prime.

It is a super-2 number, since 2×12005616711² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12005616713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3081160 + ... + 3085053.

It is an arithmetic number, because the mean of its divisors is an integer number (1109918520).

Almost surely, 2^12005616711 is an apocalyptic number.

12005616711 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12005616711 is a deficient number, since it is larger than the sum of its proper divisors (5753079609).

12005616711 is a wasteful number, since it uses less digits than its factorization.

12005616711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6166286.

The product of its (nonzero) digits is 2520, while the sum is 30.

The spelling of 12005616711 in words is "twelve billion, five million, six hundred sixteen thousand, seven hundred eleven".