12566144601 has 16 divisors (see below), whose sum is σ = 18622672320. Its totient is φ = 8374656960.

The previous prime is 12566144581. The next prime is 12566144623. The reversal of 12566144601 is 10644166521.

12566144601 is a `hidden beast` number, since 1 + 2 + 5 + 6 + 6 + 1 + 44 + 601 = 666.

It is not a de Polignac number, because 12566144601 - 2³⁰ = 11492402777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12566144671) 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, 7761 + ... + 158721.

It is an arithmetic number, because the mean of its divisors is an integer number (1163917020).

Almost surely, 2^12566144601 is an apocalyptic number.

It is an amenable number.

12566144601 is a deficient number, since it is larger than the sum of its proper divisors (6056527719).

12566144601 is a wasteful number, since it uses less digits than its factorization.

12566144601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154053 (or 154047 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 12566144601 in words is "twelve billion, five hundred sixty-six million, one hundred forty-four thousand, six hundred one".