1806606099 has 48 divisors (see below), whose sum is σ = 2884033152. Its totient is φ = 1126182528.

The previous prime is 1806606097. The next prime is 1806606101. The reversal of 1806606099 is 9906066081.

It is an interprime number because it is at equal distance from previous prime (1806606097) and next prime (1806606101).

It is not a de Polignac number, because 1806606099 - 2¹ = 1806606097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1806606097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 672012 + ... + 674694.

It is an arithmetic number, because the mean of its divisors is an integer number (60084024).

Almost surely, 2^1806606099 is an apocalyptic number.

1806606099 is a deficient number, since it is larger than the sum of its proper divisors (1077427053).

1806606099 is a wasteful number, since it uses less digits than its factorization.

1806606099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2878 (or 2866 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 1806606099 is about 42504.1891935371. The cubic root of 1806606099 is about 1217.9267166955.

The spelling of 1806606099 in words is "one billion, eight hundred six million, six hundred six thousand, ninety-nine".