4991165368 has 64 divisors (see below), whose sum is σ = 10801094400. Its totient is φ = 2118009600.

The previous prime is 4991165351. The next prime is 4991165407. The reversal of 4991165368 is 8635611994.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4748443 + ... + 4749493.

It is an arithmetic number, because the mean of its divisors is an integer number (168767100).

Almost surely, 2^4991165368 is an apocalyptic number.

It is an amenable number.

4991165368 is an abundant number, since it is smaller than the sum of its proper divisors (5809929032).

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

4991165368 is a wasteful number, since it uses less digits than its factorization.

4991165368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820 (or 1816 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 52.

The square root of 4991165368 is about 70648.1802171861. The cubic root of 4991165368 is about 1708.9682190354.

The spelling of 4991165368 in words is "four billion, nine hundred ninety-one million, one hundred sixty-five thousand, three hundred sixty-eight".