2991171366 has 12 divisors (see below), whose sum is σ = 6480871332. Its totient is φ = 997057116.

The previous prime is 2991171341. The next prime is 2991171371. The reversal of 2991171366 is 6631711992.

It is a super-2 number, since 2×2991171366² = 17894212281556611912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83088076 + ... + 83088111.

It is an arithmetic number, because the mean of its divisors is an integer number (540072611).

Almost surely, 2^2991171366 is an apocalyptic number.

2991171366 is an abundant number, since it is smaller than the sum of its proper divisors (3489699966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2991171366 is a wasteful number, since it uses less digits than its factorization.

2991171366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166176195 (or 166176192 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The square root of 2991171366 is about 54691.6023352763. The cubic root of 2991171366 is about 1440.8333920073.

The spelling of 2991171366 in words is "two billion, nine hundred ninety-one million, one hundred seventy-one thousand, three hundred sixty-six".