6613601231 has 2 divisors, whose sum is σ = 6613601232. Its totient is φ = 6613601230.

The previous prime is 6613601191. The next prime is 6613601243. The reversal of 6613601231 is 1321063166.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6613601231 - 2⁶ = 6613601167 is a prime.

It is a super-2 number, since 2×6613601231² = 87479442485369430722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6613601194 and 6613601203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6613601251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3306800615 + 3306800616.

It is an arithmetic number, because the mean of its divisors is an integer number (3306800616).

Almost surely, 2^6613601231 is an apocalyptic number.

6613601231 is a deficient number, since it is larger than the sum of its proper divisors (1).

6613601231 is an equidigital number, since it uses as much as digits as its factorization.

6613601231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 6613601231 is about 81324.0507537592. The cubic root of 6613601231 is about 1877.0651006662.

Adding to 6613601231 its reverse (1321063166), we get a palindrome (7934664397).

The spelling of 6613601231 in words is "six billion, six hundred thirteen million, six hundred one thousand, two hundred thirty-one".