266660030 has 48 divisors (see below), whose sum is σ = 594026784. Its totient is φ = 84389760.

The previous prime is 266660027. The next prime is 266660033. The reversal of 266660030 is 30066662.

It is an interprime number because it is at equal distance from previous prime (266660027) and next prime (266660033).

It is a super-2 number, since 2×266660030² = 142215143199201800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 266659975 and 266660002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266660033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 560 + ... + 23100.

It is an arithmetic number, because the mean of its divisors is an integer number (12375558).

Almost surely, 2^266660030 is an apocalyptic number.

266660030 is an abundant number, since it is smaller than the sum of its proper divisors (327366754).

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

266660030 is a wasteful number, since it uses less digits than its factorization.

266660030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22581 (or 22568 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 266660030 is about 16329.7284117036. The cubic root of 266660030 is about 643.6542500001.

The spelling of 266660030 in words is "two hundred sixty-six million, six hundred sixty thousand, thirty".