13331662 has 4 divisors (see below), whose sum is σ = 19997496. Its totient is φ = 6665830.

The previous prime is 13331641. The next prime is 13331663. The reversal of 13331662 is 26613331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26613331 = 109 ⋅244159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13331663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3332914 + ... + 3332917.

It is an arithmetic number, because the mean of its divisors is an integer number (4999374).

Almost surely, 2^13331662 is an apocalyptic number.

13331662 is a deficient number, since it is larger than the sum of its proper divisors (6665834).

13331662 is an equidigital number, since it uses as much as digits as its factorization.

13331662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6665833.

The product of its digits is 1944, while the sum is 25.

The square root of 13331662 is about 3651.2548527869. The cubic root of 13331662 is about 237.1163119614.

Adding to 13331662 its reverse (26613331), we get a palindrome (39944993).

The spelling of 13331662 in words is "thirteen million, three hundred thirty-one thousand, six hundred sixty-two".