2666616347 has 8 divisors (see below), whose sum is σ = 2684633952. Its totient is φ = 2648635200.

The previous prime is 2666616289. The next prime is 2666616391. The reversal of 2666616347 is 7436166662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2666616347 - 2²⁸ = 2398180891 is a prime.

It is a super-2 number, since 2×2666616347² = 14221685484175248818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2666616397) 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, 146522 + ... + 163712.

It is an arithmetic number, because the mean of its divisors is an integer number (335579244).

Almost surely, 2^2666616347 is an apocalyptic number.

2666616347 is a deficient number, since it is larger than the sum of its proper divisors (18017605).

2666616347 is a wasteful number, since it uses less digits than its factorization.

2666616347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18229.

The product of its digits is 1306368, while the sum is 47.

The square root of 2666616347 is about 51639.2907290563. The cubic root of 2666616347 is about 1386.7138262194.

The spelling of 2666616347 in words is "two billion, six hundred sixty-six million, six hundred sixteen thousand, three hundred forty-seven".