2661430266 has 48 divisors (see below), whose sum is σ = 6332384448. Its totient is φ = 801144000.

The previous prime is 2661430249. The next prime is 2661430273. The reversal of 2661430266 is 6620341662.

2661430266 is a `hidden beast` number, since 2 + 6 + 614 + 30 + 2 + 6 + 6 = 666.

It is a super-2 number, since 2×2661430266² = 14166422121561661512, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2661430266.

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, 14611 + ... + 74406.

It is an arithmetic number, because the mean of its divisors is an integer number (131924676).

Almost surely, 2^2661430266 is an apocalyptic number.

2661430266 is an abundant number, since it is smaller than the sum of its proper divisors (3670954182).

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

2661430266 is a wasteful number, since it uses less digits than its factorization.

2661430266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89187 (or 89184 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 2661430266 is about 51589.0518036531. The cubic root of 2661430266 is about 1385.8142745709.

The spelling of 2661430266 in words is "two billion, six hundred sixty-one million, four hundred thirty thousand, two hundred sixty-six".