2991996216 has 96 divisors (see below), whose sum is σ = 9224392320. Its totient is φ = 867240000.

The previous prime is 2991996179. The next prime is 2991996233. The reversal of 2991996216 is 6126991992.

2991996216 is a `hidden beast` number, since 2 + 9 + 9 + 1 + 9 + 9 + 621 + 6 = 666.

2991996216 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63910 + ... + 100341.

It is an arithmetic number, because the mean of its divisors is an integer number (96087420).

Almost surely, 2^2991996216 is an apocalyptic number.

It is an amenable number.

2991996216 is an abundant number, since it is smaller than the sum of its proper divisors (6232396104).

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

2991996216 is a wasteful number, since it uses less digits than its factorization.

2991996216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164297 (or 164290 counting only the distinct ones).

The product of its digits is 944784, while the sum is 54.

The square root of 2991996216 is about 54699.1427355128. The cubic root of 2991996216 is about 1440.9658219764.

The spelling of 2991996216 in words is "two billion, nine hundred ninety-one million, nine hundred ninety-six thousand, two hundred sixteen".