13566466444 has 6 divisors (see below), whose sum is σ = 23741316284. Its totient is φ = 6783233220.

The previous prime is 13566466439. The next prime is 13566466447. The reversal of 13566466444 is 44466466531.

It is not an unprimeable number, because it can be changed into a prime (13566466447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1695808302 + ... + 1695808309.

Almost surely, 2^13566466444 is an apocalyptic number.

It is an amenable number.

13566466444 is a deficient number, since it is larger than the sum of its proper divisors (10174849840).

13566466444 is a wasteful number, since it uses less digits than its factorization.

13566466444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3391616615 (or 3391616613 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 49.

The spelling of 13566466444 in words is "thirteen billion, five hundred sixty-six million, four hundred sixty-six thousand, four hundred forty-four".