2666616361 has 8 divisors (see below), whose sum is σ = 2703890304. Its totient is φ = 2629600800.

The previous prime is 2666616289. The next prime is 2666616391. The reversal of 2666616361 is 1636166662.

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 2666616361 - 2¹³ = 2666608169 is a prime.

It is a super-2 number, since 2×2666616361² = 14221685633505764642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2666616391) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 43765 + ... + 85138.

It is an arithmetic number, because the mean of its divisors is an integer number (337986288).

Almost surely, 2^2666616361 is an apocalyptic number.

It is an amenable number.

2666616361 is a deficient number, since it is larger than the sum of its proper divisors (37273943).

2666616361 is a wasteful number, since it uses less digits than its factorization.

2666616361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129191.

The product of its digits is 279936, while the sum is 43.

The square root of 2666616361 is about 51639.2908646120. The cubic root of 2666616361 is about 1386.7138286461.

The spelling of 2666616361 in words is "two billion, six hundred sixty-six million, six hundred sixteen thousand, three hundred sixty-one".