2666315 has 4 divisors (see below), whose sum is σ = 3199584. Its totient is φ = 2133048.

The previous prime is 2666309. The next prime is 2666381. The reversal of 2666315 is 5136662.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5136662 = 2 ⋅2568331.

It is a cyclic number.

It is not a de Polignac number, because 2666315 - 2¹⁰ = 2665291 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266627 + ... + 266636.

It is an arithmetic number, because the mean of its divisors is an integer number (799896).

2^2666315 is an apocalyptic number.

2666315 is a deficient number, since it is larger than the sum of its proper divisors (533269).

2666315 is an equidigital number, since it uses as much as digits as its factorization.

2666315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533268.

The product of its digits is 6480, while the sum is 29.

The square root of 2666315 is about 1632.8854828187. The cubic root of 2666315 is about 138.6661588009. Note that the first 3 decimals are identical.

The spelling of 2666315 in words is "two million, six hundred sixty-six thousand, three hundred fifteen".