5667667657 has 2 divisors, whose sum is σ = 5667667658. Its totient is φ = 5667667656.

The previous prime is 5667667639. The next prime is 5667667667. The reversal of 5667667657 is 7567667665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3582740736 + 2084926921 = 59856^2 + 45661^2 .

It is a cyclic number.

It is not a de Polignac number, because 5667667657 - 2¹¹ = 5667665609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5667667595 and 5667667604.

It is not a weakly prime, because it can be changed into another prime (5667667627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2833833828 + 2833833829.

It is an arithmetic number, because the mean of its divisors is an integer number (2833833829).

Almost surely, 2^5667667657 is an apocalyptic number.

It is an amenable number.

5667667657 is a deficient number, since it is larger than the sum of its proper divisors (1).

5667667657 is an equidigital number, since it uses as much as digits as its factorization.

5667667657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66679200, while the sum is 61.

The square root of 5667667657 is about 75283.9136668651. The cubic root of 5667667657 is about 1782.9320502722.

The spelling of 5667667657 in words is "five billion, six hundred sixty-seven million, six hundred sixty-seven thousand, six hundred fifty-seven".