5667667664 has 20 divisors (see below), whose sum is σ = 11359765860. Its totient is φ = 2736115200.

The previous prime is 5667667657. The next prime is 5667667667. The reversal of 5667667664 is 4667667665.

It can be written as a sum of positive squares in 2 ways, for example, as 3225331264 + 2442336400 = 56792^2 + 49420^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5667667667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6106937 + ... + 6107864.

It is an arithmetic number, because the mean of its divisors is an integer number (567988293).

Almost surely, 2^5667667664 is an apocalyptic number.

It is an amenable number.

5667667664 is an abundant number, since it is smaller than the sum of its proper divisors (5692098196).

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

5667667664 is a wasteful number, since it uses less digits than its factorization.

5667667664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12214838 (or 12214832 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 59.

The square root of 5667667664 is about 75283.9137133558. The cubic root of 5667667664 is about 1782.9320510062.

Subtracting from 5667667664 its reverse (4667667665), we obtain a palindrome (999999999).

The spelling of 5667667664 in words is "five billion, six hundred sixty-seven million, six hundred sixty-seven thousand, six hundred sixty-four".