1966836266 has 8 divisors (see below), whose sum is σ = 2958708900. Its totient is φ = 980599968.

The previous prime is 1966836259. The next prime is 1966836293. The reversal of 1966836266 is 6626386691.

It can be written as a sum of positive squares in 2 ways, for example, as 1721005225 + 245831041 = 41485^2 + 15679^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1408211 + ... + 1409606.

Almost surely, 2^1966836266 is an apocalyptic number.

1966836266 is a deficient number, since it is larger than the sum of its proper divisors (991872634).

1966836266 is a wasteful number, since it uses less digits than its factorization.

1966836266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2818168.

The product of its digits is 3359232, while the sum is 53.

The square root of 1966836266 is about 44349.0277909223. The cubic root of 1966836266 is about 1252.9182518232.

The spelling of 1966836266 in words is "one billion, nine hundred sixty-six million, eight hundred thirty-six thousand, two hundred sixty-six".