266660010 has 48 divisors (see below), whose sum is σ = 694797480. Its totient is φ = 70957440.

The previous prime is 266659961. The next prime is 266660027. The reversal of 266660010 is 10066662.

It can be written as a sum of positive squares in 4 ways, for example, as 264680361 + 1979649 = 16269^2 + 1407^2 .

It is a super-2 number, since 2×266660010² = 142215121866400200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42900 + ... + 48720.

Almost surely, 2^266660010 is an apocalyptic number.

266660010 is an abundant number, since it is smaller than the sum of its proper divisors (428137470).

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

266660010 is a wasteful number, since it uses less digits than its factorization.

266660010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6343 (or 6340 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 266660010 is about 16329.7277993235. The cubic root of 266660010 is about 643.6542339084.

The spelling of 266660010 in words is "two hundred sixty-six million, six hundred sixty thousand, ten".