1266204982273 has 8 divisors (see below), whose sum is σ = 1578645172800. Its totient is φ = 986653232880.

The previous prime is 1266204982247. The next prime is 1266204982283. The reversal of 1266204982273 is 3722894026621.

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

It is not a de Polignac number, because 1266204982273 - 2⁹ = 1266204981761 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1266204982273.

It is not an unprimeable number, because it can be changed into a prime (1266204982283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8222110198 + ... + 8222110351.

It is an arithmetic number, because the mean of its divisors is an integer number (197330646600).

Almost surely, 2^{1266204982273} is an apocalyptic number.

It is an amenable number.

1266204982273 is a deficient number, since it is larger than the sum of its proper divisors (312440190527).

1266204982273 is a wasteful number, since it uses less digits than its factorization.

1266204982273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16444220567.

The product of its (nonzero) digits is 3483648, while the sum is 52.

The spelling of 1266204982273 in words is "one trillion, two hundred sixty-six billion, two hundred four million, nine hundred eighty-two thousand, two hundred seventy-three".