266644164 has 24 divisors (see below), whose sum is σ = 622629280. Its totient is φ = 88815744.

The previous prime is 266644127. The next prime is 266644171. The reversal of 266644164 is 461446662.

It is a super-2 number, since 2×266644164² = 142198220390517792, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10407 + ... + 25329.

Almost surely, 2^266644164 is an apocalyptic number.

It is an amenable number.

266644164 is an abundant number, since it is smaller than the sum of its proper divisors (355985116).

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

266644164 is a wasteful number, since it uses less digits than its factorization.

266644164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16419 (or 16417 counting only the distinct ones).

The product of its digits is 165888, while the sum is 39.

The square root of 266644164 is about 16329.2426033788. The cubic root of 266644164 is about 643.6414841563.

The spelling of 266644164 in words is "two hundred sixty-six million, six hundred forty-four thousand, one hundred sixty-four".