2666435673 has 48 divisors (see below), whose sum is σ = 4044563136. Its totient is φ = 1548501120.

The previous prime is 2666435657. The next prime is 2666435683. The reversal of 2666435673 is 3765346662.

It is not a de Polignac number, because 2666435673 - 2⁴ = 2666435657 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666435683) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8411311 + ... + 8411627.

It is an arithmetic number, because the mean of its divisors is an integer number (84261732).

Almost surely, 2^2666435673 is an apocalyptic number.

It is an amenable number.

2666435673 is a deficient number, since it is larger than the sum of its proper divisors (1378127463).

2666435673 is a wasteful number, since it uses less digits than its factorization.

2666435673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 451 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 48.

The square root of 2666435673 is about 51637.5413144352. The cubic root of 2666435673 is about 1386.6825070293.

The spelling of 2666435673 in words is "two billion, six hundred sixty-six million, four hundred thirty-five thousand, six hundred seventy-three".