2666263 has 12 divisors (see below), whose sum is σ = 2925072. Its totient is φ = 2421440.

The previous prime is 2666227. The next prime is 2666267. The reversal of 2666263 is 3626662.

It is not a de Polignac number, because 2666263 - 2²¹ = 569111 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 6² + 6⁵ + 6⁵ + 2¹⁹ + 6⁵ + 3¹³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37518 + ... + 37588.

It is an arithmetic number, because the mean of its divisors is an integer number (243756).

2^2666263 is an apocalyptic number.

2666263 is a deficient number, since it is larger than the sum of its proper divisors (258809).

2666263 is an equidigital number, since it uses as much as digits as its factorization.

2666263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 135 counting only the distinct ones).

The product of its digits is 15552, while the sum is 31.

The square root of 2666263 is about 1632.8695600078. The cubic root of 2666263 is about 138.6652573462.

The spelling of 2666263 in words is "two million, six hundred sixty-six thousand, two hundred sixty-three".