2666446404 has 12 divisors (see below), whose sum is σ = 6221708304. Its totient is φ = 888815464.

The previous prime is 2666446381. The next prime is 2666446411. The reversal of 2666446404 is 4046446662.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 111101922 + ... + 111101945.

It is an arithmetic number, because the mean of its divisors is an integer number (518475692).

Almost surely, 2^2666446404 is an apocalyptic number.

It is an amenable number.

2666446404 is an abundant number, since it is smaller than the sum of its proper divisors (3555261900).

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

2666446404 is a wasteful number, since it uses less digits than its factorization.

2666446404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222203874 (or 222203872 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 42.

The square root of 2666446404 is about 51637.6452212918. The cubic root of 2666446404 is about 1386.6843672492.

The spelling of 2666446404 in words is "two billion, six hundred sixty-six million, four hundred forty-six thousand, four hundred four".