2666404004 has 24 divisors (see below), whose sum is σ = 5214567456. Its totient is φ = 1182440000.

The previous prime is 2666404003. The next prime is 2666404033. The reversal of 2666404004 is 4004046662.

2666404004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2666404003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 737222 + ... + 740829.

It is an arithmetic number, because the mean of its divisors is an integer number (217273644).

Almost surely, 2^2666404004 is an apocalyptic number.

It is an amenable number.

2666404004 is a deficient number, since it is larger than the sum of its proper divisors (2548163452).

2666404004 is a wasteful number, since it uses less digits than its factorization.

2666404004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478107 (or 1478105 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 2666404004 is about 51637.2346664691. The cubic root of 2666404004 is about 1386.6770171760.

The spelling of 2666404004 in words is "two billion, six hundred sixty-six million, four hundred four thousand, four".