13031144466 has 16 divisors (see below), whose sum is σ = 26429364288. Its totient is φ = 4282535600.

The previous prime is 13031144443. The next prime is 13031144473. The reversal of 13031144466 is 66444113031.

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, 15294345 + ... + 15295196.

It is an arithmetic number, because the mean of its divisors is an integer number (1651835268).

Almost surely, 2^13031144466 is an apocalyptic number.

13031144466 is an abundant number, since it is smaller than the sum of its proper divisors (13398219822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13031144466 is a wasteful number, since it uses less digits than its factorization.

13031144466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30589617.

The product of its (nonzero) digits is 20736, while the sum is 33.

Adding to 13031144466 its reverse (66444113031), we get a palindrome (79475257497).

The spelling of 13031144466 in words is "thirteen billion, thirty-one million, one hundred forty-four thousand, four hundred sixty-six".