265666966 has 8 divisors (see below), whose sum is σ = 402446304. Its totient is φ = 131518200.

The previous prime is 265666963. The next prime is 265666969. The reversal of 265666966 is 669666562.

It is a happy number.

265666966 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (265666963) and next prime (265666969).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265666963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657390 + ... + 657793.

It is an arithmetic number, because the mean of its divisors is an integer number (50305788).

Almost surely, 2^265666966 is an apocalyptic number.

265666966 is a deficient number, since it is larger than the sum of its proper divisors (136779338).

265666966 is a wasteful number, since it uses less digits than its factorization.

265666966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315286.

The product of its digits is 4199040, while the sum is 52.

The square root of 265666966 is about 16299.2934202683. The cubic root of 265666966 is about 642.8542488712.

The spelling of 265666966 in words is "two hundred sixty-five million, six hundred sixty-six thousand, nine hundred sixty-six".