13320450406 has 4 divisors (see below), whose sum is σ = 19980675612. Its totient is φ = 6660225202.

The previous prime is 13320450389. The next prime is 13320450421. The reversal of 13320450406 is 60405402331.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3330112600 + ... + 3330112603.

It is an arithmetic number, because the mean of its divisors is an integer number (4995168903).

Almost surely, 2^13320450406 is an apocalyptic number.

13320450406 is a deficient number, since it is larger than the sum of its proper divisors (6660225206).

13320450406 is an equidigital number, since it uses as much as digits as its factorization.

13320450406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6660225205.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 13320450406 its reverse (60405402331), we get a palindrome (73725852737).

The spelling of 13320450406 in words is "thirteen billion, three hundred twenty million, four hundred fifty thousand, four hundred six".