265064266 has 4 divisors (see below), whose sum is σ = 397596402. Its totient is φ = 132532132.

The previous prime is 265064257. The next prime is 265064273. The reversal of 265064266 is 662460562.

It is a happy number.

265064266 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 662460562 = 2 ⋅331230281.

It can be written as a sum of positive squares in only one way, i.e., 263900025 + 1164241 = 16245^2 + 1079^2 .

It is a super-2 number, since 2×265064266² = 140518130220237512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66266065 + ... + 66266068.

Almost surely, 2^265064266 is an apocalyptic number.

265064266 is a deficient number, since it is larger than the sum of its proper divisors (132532136).

265064266 is a wasteful number, since it uses less digits than its factorization.

265064266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132532135.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 265064266 is about 16280.7943909381. The cubic root of 265064266 is about 642.3677480167.

The spelling of 265064266 in words is "two hundred sixty-five million, sixty-four thousand, two hundred sixty-six".