5720664168 has 24 divisors (see below), whose sum is σ = 15493465650. Its totient is φ = 1906888032.

The previous prime is 5720664161. The next prime is 5720664221. The reversal of 5720664168 is 8614660275.

5720664168 is a `hidden beast` number, since 572 + 0 + 6 + 64 + 16 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2930923044 + 2789741124 = 54138^2 + 52818^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (5720664161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39726763 + ... + 39726906.

Almost surely, 2^5720664168 is an apocalyptic number.

It is an amenable number.

5720664168 is an abundant number, since it is smaller than the sum of its proper divisors (9772801482).

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

5720664168 is a wasteful number, since it uses less digits than its factorization.

5720664168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79453681 (or 79453674 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 5720664168 is about 75635.0723408129. The cubic root of 5720664168 is about 1788.4720237787.

The spelling of 5720664168 in words is "five billion, seven hundred twenty million, six hundred sixty-four thousand, one hundred sixty-eight".