13405216064 has 28 divisors (see below), whose sum is σ = 26608515744. Its totient is φ = 6700708224.

The previous prime is 13405216043. The next prime is 13405216067. The reversal of 13405216064 is 46061250431.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 13405216064.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13405216067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213287 + ... + 268889.

Almost surely, 2^13405216064 is an apocalyptic number.

It is an amenable number.

13405216064 is a deficient number, since it is larger than the sum of its proper divisors (13203299680).

13405216064 is an equidigital number, since it uses as much as digits as its factorization.

13405216064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59382 (or 59372 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 13405216064 its reverse (46061250431), we get a palindrome (59466466495).

The spelling of 13405216064 in words is "thirteen billion, four hundred five million, two hundred sixteen thousand, sixty-four".