13641534266 has 4 divisors (see below), whose sum is σ = 20462301402. Its totient is φ = 6820767132.

The previous prime is 13641534251. The next prime is 13641534287. The reversal of 13641534266 is 66243514631.

13641534266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66243514631 = 7 ⋅9463359233.

It can be written as a sum of positive squares in only one way, i.e., 13532436241 + 109098025 = 116329^2 + 10445^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3410383565 + ... + 3410383568.

Almost surely, 2^13641534266 is an apocalyptic number.

13641534266 is a deficient number, since it is larger than the sum of its proper divisors (6820767136).

13641534266 is an equidigital number, since it uses as much as digits as its factorization.

13641534266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6820767135.

The product of its digits is 311040, while the sum is 41.

The spelling of 13641534266 in words is "thirteen billion, six hundred forty-one million, five hundred thirty-four thousand, two hundred sixty-six".