16666414244 has 12 divisors (see below), whose sum is σ = 29171835084. Its totient is φ = 8331604224.

The previous prime is 16666414207. The next prime is 16666414313. The reversal of 16666414244 is 44241466661.

It can be written as a sum of positive squares in 2 ways, for example, as 10725087844 + 5941326400 = 103562^2 + 77080^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16666414195 and 16666414204.

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, 377177 + ... + 419040.

It is an arithmetic number, because the mean of its divisors is an integer number (2430986257).

Almost surely, 2^16666414244 is an apocalyptic number.

It is an amenable number.

16666414244 is a deficient number, since it is larger than the sum of its proper divisors (12505420840).

16666414244 is a wasteful number, since it uses less digits than its factorization.

16666414244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801454 (or 801452 counting only the distinct ones).

The product of its digits is 663552, while the sum is 44.

The spelling of 16666414244 in words is "sixteen billion, six hundred sixty-six million, four hundred fourteen thousand, two hundred forty-four".