266652145 has 4 divisors (see below), whose sum is σ = 319982580. Its totient is φ = 213321712.

The previous prime is 266652131. The next prime is 266652163. The reversal of 266652145 is 541256662.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 75134224 + 191517921 = 8668^2 + 13839^2 .

It is a cyclic number.

It is not a de Polignac number, because 266652145 - 2⁷ = 266652017 is a prime.

It is a super-2 number, since 2×266652145² = 142206732866202050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26665210 + ... + 26665219.

It is an arithmetic number, because the mean of its divisors is an integer number (79995645).

Almost surely, 2^266652145 is an apocalyptic number.

It is an amenable number.

266652145 is a deficient number, since it is larger than the sum of its proper divisors (53330435).

266652145 is an equidigital number, since it uses as much as digits as its factorization.

266652145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53330434.

The product of its digits is 86400, while the sum is 37.

The square root of 266652145 is about 16329.4869790817. The cubic root of 266652145 is about 643.6479057625.

The spelling of 266652145 in words is "two hundred sixty-six million, six hundred fifty-two thousand, one hundred forty-five".