2666495 has 8 divisors (see below), whose sum is σ = 3446016. Its totient is φ = 1969056.

The previous prime is 2666491. The next prime is 2666507. The reversal of 2666495 is 5946662.

2666495 = T₅₈ + T₅₉ + ... + T₂₅₂.

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 2666495 - 2² = 2666491 is a prime.

It is a super-2 number, since 2×2666495² = 14220391170050, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666491) 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, 20447 + ... + 20576.

It is an arithmetic number, because the mean of its divisors is an integer number (430752).

2^2666495 is an apocalyptic number.

2666495 is a deficient number, since it is larger than the sum of its proper divisors (779521).

2666495 is a wasteful number, since it uses less digits than its factorization.

2666495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41041.

The product of its digits is 77760, while the sum is 38.

The square root of 2666495 is about 1632.9405990421. The cubic root of 2666495 is about 138.6692791308.

It can be divided in two parts, 26 and 66495, that multiplied together give a triangular number (1728870 = T₁₈₅₉).

The spelling of 2666495 in words is "two million, six hundred sixty-six thousand, four hundred ninety-five".