2665082785 has 16 divisors (see below), whose sum is σ = 3416673600. Its totient is φ = 1989700416.

The previous prime is 2665082753. The next prime is 2665082789. The reversal of 2665082785 is 5872805662.

It is a cyclic number.

It is not a de Polignac number, because 2665082785 - 2⁵ = 2665082753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2665082789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202990 + ... + 215719.

It is an arithmetic number, because the mean of its divisors is an integer number (213542100).

Almost surely, 2^2665082785 is an apocalyptic number.

It is an amenable number.

2665082785 is a deficient number, since it is larger than the sum of its proper divisors (751590815).

2665082785 is a wasteful number, since it uses less digits than its factorization.

2665082785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418800.

The product of its (nonzero) digits is 1612800, while the sum is 49.

The square root of 2665082785 is about 51624.4398032560. The cubic root of 2665082785 is about 1386.4479437737.

The spelling of 2665082785 in words is "two billion, six hundred sixty-five million, eighty-two thousand, seven hundred eighty-five".