13445567791144 has 16 divisors (see below), whose sum is σ = 25210526735520. Its totient is φ = 6722760661680.

The previous prime is 13445567791127. The next prime is 13445567791163. The reversal of 13445567791144 is 44119776554431.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308244 + ... + 5194819.

It is an arithmetic number, because the mean of its divisors is an integer number (1575657920970).

Almost surely, 2^{13445567791144} is an apocalyptic number.

It is an amenable number.

13445567791144 is a deficient number, since it is larger than the sum of its proper divisors (11764958944376).

13445567791144 is a wasteful number, since it uses less digits than its factorization.

13445567791144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5808480 (or 5808476 counting only the distinct ones).

The product of its digits is 50803200, while the sum is 61.

The spelling of 13445567791144 in words is "thirteen trillion, four hundred forty-five billion, five hundred sixty-seven million, seven hundred ninety-one thousand, one hundred forty-four".