7666266 has 16 divisors (see below), whose sum is σ = 15861600. Its totient is φ = 2467248.

The previous prime is 7666261. The next prime is 7666273. The reversal of 7666266 is 6626667.

It is not an unprimeable number, because it can be changed into a prime (7666261) 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, 21856 + ... + 22203.

It is an arithmetic number, because the mean of its divisors is an integer number (991350).

Almost surely, 2^7666266 is an apocalyptic number.

7666266 is an abundant number, since it is smaller than the sum of its proper divisors (8195334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7666266 is a wasteful number, since it uses less digits than its factorization.

7666266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44093.

The product of its digits is 108864, while the sum is 39.

The square root of 7666266 is about 2768.8022681297. The cubic root of 7666266 is about 197.1792882833.

The spelling of 7666266 in words is "seven million, six hundred sixty-six thousand, two hundred sixty-six".