13316432005 has 8 divisors (see below), whose sum is σ = 15984650232. Its totient is φ = 10649857728.

The previous prime is 13316431987. The next prime is 13316432011. The reversal of 13316432005 is 50023461331.

It can be written as a sum of positive squares in 4 ways, for example, as 5992153281 + 7324278724 = 77409^2 + 85582^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13316432005 - 2⁹ = 13316431493 is a prime.

It is a super-2 number, since 2×13316432005² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393094 + ... + 425623.

It is an arithmetic number, because the mean of its divisors is an integer number (1998081279).

Almost surely, 2^13316432005 is an apocalyptic number.

It is an amenable number.

13316432005 is a deficient number, since it is larger than the sum of its proper divisors (2668218227).

13316432005 is an equidigital number, since it uses as much as digits as its factorization.

13316432005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821975.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 13316432005 its reverse (50023461331), we get a palindrome (63339893336).

The spelling of 13316432005 in words is "thirteen billion, three hundred sixteen million, four hundred thirty-two thousand, five".