13540321466 has 64 divisors (see below), whose sum is σ = 25138252800. Its totient is φ = 5338086144.

The previous prime is 13540321441. The next prime is 13540321493. The reversal of 13540321466 is 66412304531.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2510825 + ... + 2516211.

It is an arithmetic number, because the mean of its divisors is an integer number (392785200).

Almost surely, 2^13540321466 is an apocalyptic number.

13540321466 is a deficient number, since it is larger than the sum of its proper divisors (11597931334).

13540321466 is a wasteful number, since it uses less digits than its factorization.

13540321466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5651.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 13540321466 its reverse (66412304531), we get a palindrome (79952625997).

The spelling of 13540321466 in words is "thirteen billion, five hundred forty million, three hundred twenty-one thousand, four hundred sixty-six".