2391168056 has 8 divisors (see below), whose sum is σ = 4483440120. Its totient is φ = 1195584024.

The previous prime is 2391168041. The next prime is 2391168061. The reversal of 2391168056 is 6508611932.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149447996 + ... + 149448011.

It is an arithmetic number, because the mean of its divisors is an integer number (560430015).

Almost surely, 2^2391168056 is an apocalyptic number.

It is an amenable number.

2391168056 is a deficient number, since it is larger than the sum of its proper divisors (2092272064).

2391168056 is a wasteful number, since it uses less digits than its factorization.

2391168056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298896013 (or 298896009 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 2391168056 is about 48899.5711228636. The cubic root of 2391168056 is about 1337.2215496972.

Adding to 2391168056 its reverse (6508611932), we get a palindrome (8899779988).

The spelling of 2391168056 in words is "two billion, three hundred ninety-one million, one hundred sixty-eight thousand, fifty-six".