5145681168 has 100 divisors (see below), whose sum is σ = 15295752780. Its totient is φ = 1668854016.

The previous prime is 5145681161. The next prime is 5145681181. The reversal of 5145681168 is 8611865415.

5145681168 is a `hidden beast` number, since 5 + 14 + 568 + 11 + 68 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2808152064 + 2337529104 = 52992^2 + 48348^2 .

It is not an unprimeable number, because it can be changed into a prime (5145681161) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5703 + ... + 101606.

Almost surely, 2^5145681168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5145681168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7647876390).

5145681168 is an abundant number, since it is smaller than the sum of its proper divisors (10150071612).

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

5145681168 is a wasteful number, since it uses less digits than its factorization.

5145681168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107366 (or 107351 counting only the distinct ones).

The product of its digits is 230400, while the sum is 45.

The square root of 5145681168 is about 71733.4034324317. The cubic root of 5145681168 is about 1726.4246348257.

The spelling of 5145681168 in words is "five billion, one hundred forty-five million, six hundred eighty-one thousand, one hundred sixty-eight".