2991916333 has 12 divisors (see below), whose sum is σ = 3485527200. Its totient is φ = 2560716312.

The previous prime is 2991916327. The next prime is 2991916351. The reversal of 2991916333 is 3336191992.

It is a de Polignac number, because none of the positive numbers 2^k-2991916333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2991916313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11233 + ... + 78166.

It is an arithmetic number, because the mean of its divisors is an integer number (290460600).

Almost surely, 2^2991916333 is an apocalyptic number.

It is an amenable number.

2991916333 is a deficient number, since it is larger than the sum of its proper divisors (493610867).

2991916333 is an equidigital number, since it uses as much as digits as its factorization.

2991916333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90096 (or 90089 counting only the distinct ones).

The product of its digits is 236196, while the sum is 46.

The square root of 2991916333 is about 54698.4125272389. The cubic root of 2991916333 is about 1440.9529977961.

The spelling of 2991916333 in words is "two billion, nine hundred ninety-one million, nine hundred sixteen thousand, three hundred thirty-three".