2666405012 has 12 divisors (see below), whose sum is σ = 4675489056. Its totient is φ = 1330551000.

The previous prime is 2666405009. The next prime is 2666405041. The reversal of 2666405012 is 2105046662.

It is a self number, because there is not a number n which added to its sum of digits gives 2666405012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660614 + ... + 664637.

It is an arithmetic number, because the mean of its divisors is an integer number (389624088).

Almost surely, 2^2666405012 is an apocalyptic number.

It is an amenable number.

2666405012 is a deficient number, since it is larger than the sum of its proper divisors (2009084044).

2666405012 is a wasteful number, since it uses less digits than its factorization.

2666405012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325758 (or 1325756 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 2666405012 is about 51637.2444268669. The cubic root of 2666405012 is about 1386.6771919145.

The spelling of 2666405012 in words is "two billion, six hundred sixty-six million, four hundred five thousand, twelve".