12611143646 has 16 divisors (see below), whose sum is σ = 18962884080. Its totient is φ = 6290201280.

The previous prime is 12611143631. The next prime is 12611143661. The reversal of 12611143646 is 64634111621.

It is an interprime number because it is at equal distance from previous prime (12611143631) and next prime (12611143661).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1660610 + ... + 1668186.

It is an arithmetic number, because the mean of its divisors is an integer number (1185180255).

Almost surely, 2^12611143646 is an apocalyptic number.

12611143646 is a deficient number, since it is larger than the sum of its proper divisors (6351740434).

12611143646 is a wasteful number, since it uses less digits than its factorization.

12611143646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9499.

The product of its digits is 20736, while the sum is 35.

The spelling of 12611143646 in words is "twelve billion, six hundred eleven million, one hundred forty-three thousand, six hundred forty-six".