1299585166 has 16 divisors (see below), whose sum is σ = 2129189040. Its totient is φ = 589999680.

The previous prime is 1299585143. The next prime is 1299585167. The reversal of 1299585166 is 6615859921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1299585167) 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, 17391 + ... + 53866.

It is an arithmetic number, because the mean of its divisors is an integer number (133074315).

Almost surely, 2^1299585166 is an apocalyptic number.

1299585166 is a deficient number, since it is larger than the sum of its proper divisors (829603874).

1299585166 is a wasteful number, since it uses less digits than its factorization.

1299585166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72099.

The product of its digits is 1166400, while the sum is 52.

The square root of 1299585166 is about 36049.7595831096. The cubic root of 1299585166 is about 1091.2767817684.

The spelling of 1299585166 in words is "one billion, two hundred ninety-nine million, five hundred eighty-five thousand, one hundred sixty-six".