2991166203 has 8 divisors (see below), whose sum is σ = 4003741008. Its totient is φ = 1986351104.

The previous prime is 2991166153. The next prime is 2991166229. The reversal of 2991166203 is 3026611992.

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

It is a cyclic number.

It is not a de Polignac number, because 2991166203 - 2¹⁰ = 2991165179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2991166403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1939026 + ... + 1940567.

It is an arithmetic number, because the mean of its divisors is an integer number (500467626).

Almost surely, 2^2991166203 is an apocalyptic number.

2991166203 is a deficient number, since it is larger than the sum of its proper divisors (1012574805).

2991166203 is a wasteful number, since it uses less digits than its factorization.

2991166203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3879853.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 2991166203 is about 54691.5551342252. Note that the first 3 decimals coincide. The cubic root of 2991166203 is about 1440.8325630090.

The spelling of 2991166203 in words is "two billion, nine hundred ninety-one million, one hundred sixty-six thousand, two hundred three".