13155133946 has 4 divisors (see below), whose sum is σ = 19732700922. Its totient is φ = 6577566972.

The previous prime is 13155133933. The next prime is 13155133973. The reversal of 13155133946 is 64933155131.

13155133946 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.

It can be written as a sum of positive squares in only one way, i.e., 12981184225 + 173949721 = 113935^2 + 13189^2 .

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, 3288783485 + ... + 3288783488.

Almost surely, 2^13155133946 is an apocalyptic number.

13155133946 is a deficient number, since it is larger than the sum of its proper divisors (6577566976).

13155133946 is an equidigital number, since it uses as much as digits as its factorization.

13155133946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6577566975.

The product of its digits is 145800, while the sum is 41.

The spelling of 13155133946 in words is "thirteen billion, one hundred fifty-five million, one hundred thirty-three thousand, nine hundred forty-six".