266661130 has 32 divisors (see below), whose sum is σ = 492963408. Its totient is φ = 103795200.

The previous prime is 266661113. The next prime is 266661173. The reversal of 266661130 is 31166662.

It can be written as a sum of positive squares in 8 ways, for example, as 5870929 + 260790201 = 2423^2 + 16149^2 .

It is a super-2 number, since 2×266661130² = 142216316505753800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 266661092 and 266661101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250800 + ... + 251860.

Almost surely, 2^266661130 is an apocalyptic number.

266661130 is a deficient number, since it is larger than the sum of its proper divisors (226302278).

266661130 is a wasteful number, since it uses less digits than its factorization.

266661130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 266661130 is about 16329.7620925720. The cubic root of 266661130 is about 643.6551350455.

The spelling of 266661130 in words is "two hundred sixty-six million, six hundred sixty-one thousand, one hundred thirty".