12951366601 has 4 divisors (see below), whose sum is σ = 12954707604. Its totient is φ = 12948025600.

The previous prime is 12951366583. The next prime is 12951366607. The reversal of 12951366601 is 10666315921.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7770246201 + 5181120400 = 88149^2 + 71980^2 .

It is a cyclic number.

It is not a de Polignac number, because 12951366601 - 2¹¹ = 12951364553 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12951366607) 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, 1664680 + ... + 1672441.

It is an arithmetic number, because the mean of its divisors is an integer number (3238676901).

Almost surely, 2^12951366601 is an apocalyptic number.

It is an amenable number.

12951366601 is a deficient number, since it is larger than the sum of its proper divisors (3341003).

12951366601 is an equidigital number, since it uses as much as digits as its factorization.

12951366601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3341002.

The product of its (nonzero) digits is 58320, while the sum is 40.

The spelling of 12951366601 in words is "twelve billion, nine hundred fifty-one million, three hundred sixty-six thousand, six hundred one".