13646634601 has 4 divisors (see below), whose sum is σ = 13649305600. Its totient is φ = 13643963604.

The previous prime is 13646634583. The next prime is 13646634607. The reversal of 13646634601 is 10643664631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10643664631 = 44119 ⋅241249.

It is a cyclic number.

It is not a de Polignac number, because 13646634601 - 2⁷ = 13646634473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13646634607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1327821 + ... + 1338058.

It is an arithmetic number, because the mean of its divisors is an integer number (3412326400).

Almost surely, 2^13646634601 is an apocalyptic number.

It is an amenable number.

13646634601 is a deficient number, since it is larger than the sum of its proper divisors (2670999).

13646634601 is an equidigital number, since it uses as much as digits as its factorization.

13646634601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2670998.

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 13646634601 in words is "thirteen billion, six hundred forty-six million, six hundred thirty-four thousand, six hundred one".