2666446516 has 12 divisors (see below), whose sum is σ = 4669092288. Its totient is φ = 1332420152.

The previous prime is 2666446507. The next prime is 2666446537. The reversal of 2666446516 is 6156446662.

It is a congruent number.

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, 193276 + ... + 206611.

It is an arithmetic number, because the mean of its divisors is an integer number (389091024).

Almost surely, 2^2666446516 is an apocalyptic number.

It is an amenable number.

2666446516 is a deficient number, since it is larger than the sum of its proper divisors (2002645772).

2666446516 is a wasteful number, since it uses less digits than its factorization.

2666446516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401558 (or 401556 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 46.

The square root of 2666446516 is about 51637.6463057719. The cubic root of 2666446516 is about 1386.6843866644.

The spelling of 2666446516 in words is "two billion, six hundred sixty-six million, four hundred forty-six thousand, five hundred sixteen".