13566466443 has 16 divisors (see below), whose sum is σ = 18147434400. Its totient is φ = 9014952960.

The previous prime is 13566466439. The next prime is 13566466447. The reversal of 13566466443 is 34466466531.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13566466439) and next prime (13566466447).

It is not a de Polignac number, because 13566466443 - 2² = 13566466439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13566466392 and 13566466401.

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

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1259103 + ... + 1269831.

It is an arithmetic number, because the mean of its divisors is an integer number (1134214650).

Almost surely, 2^13566466443 is an apocalyptic number.

13566466443 is a deficient number, since it is larger than the sum of its proper divisors (4580967957).

13566466443 is a wasteful number, since it uses less digits than its factorization.

13566466443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12062.

The product of its digits is 3732480, while the sum is 48.

The spelling of 13566466443 in words is "thirteen billion, five hundred sixty-six million, four hundred sixty-six thousand, four hundred forty-three".