2660065 has 8 divisors (see below), whose sum is σ = 3331008. Its totient is φ = 2035440.

The previous prime is 2660029. The next prime is 2660069. The reversal of 2660065 is 5600662.

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

It is not a de Polignac number, because 2660065 - 2¹⁵ = 2627297 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2660069) 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, 11451 + ... + 11680.

It is an arithmetic number, because the mean of its divisors is an integer number (416376).

2^2660065 is an apocalyptic number.

It is an amenable number.

2660065 is a deficient number, since it is larger than the sum of its proper divisors (670943).

2660065 is a wasteful number, since it uses less digits than its factorization.

2660065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23159.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 2660065 is about 1630.9705699368. The cubic root of 2660065 is about 138.5577268082.

The spelling of 2660065 in words is "two million, six hundred sixty thousand, sixty-five".