2099666015 has 16 divisors (see below), whose sum is σ = 2580681600. Its totient is φ = 1639219200.

The previous prime is 2099665993. The next prime is 2099666057. The reversal of 2099666015 is 5106669902.

It is not a de Polignac number, because 2099666015 - 2¹⁴ = 2099649631 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 69215 + ... + 94815.

It is an arithmetic number, because the mean of its divisors is an integer number (161292600).

Almost surely, 2^2099666015 is an apocalyptic number.

2099666015 is a deficient number, since it is larger than the sum of its proper divisors (481015585).

2099666015 is a wasteful number, since it uses less digits than its factorization.

2099666015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26002.

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 2099666015 is about 45822.1127295545. The cubic root of 2099666015 is about 1280.5112734148.

The spelling of 2099666015 in words is "two billion, ninety-nine million, six hundred sixty-six thousand, fifteen".