12611227645 has 16 divisors (see below), whose sum is σ = 15643514880. Its totient is φ = 9749865600.

The previous prime is 12611227631. The next prime is 12611227649. The reversal of 12611227645 is 54672211621.

It is not a de Polignac number, because 12611227645 - 2¹⁵ = 12611194877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12611227649) 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, 54865 + ... + 168025.

It is an arithmetic number, because the mean of its divisors is an integer number (977719680).

Almost surely, 2^12611227645 is an apocalyptic number.

It is an amenable number.

12611227645 is a deficient number, since it is larger than the sum of its proper divisors (3032287235).

12611227645 is a wasteful number, since it uses less digits than its factorization.

12611227645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113916.

The product of its digits is 40320, while the sum is 37.

The spelling of 12611227645 in words is "twelve billion, six hundred eleven million, two hundred twenty-seven thousand, six hundred forty-five".