6661135267 has 2 divisors, whose sum is σ = 6661135268. Its totient is φ = 6661135266.

The previous prime is 6661135259. The next prime is 6661135303. The reversal of 6661135267 is 7625311666.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6661135267 - 2³ = 6661135259 is a prime.

It is a super-2 number, since 2×6661135267² = 88741446090542322578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6661535267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3330567633 + 3330567634.

It is an arithmetic number, because the mean of its divisors is an integer number (3330567634).

Almost surely, 2^6661135267 is an apocalyptic number.

6661135267 is a deficient number, since it is larger than the sum of its proper divisors (1).

6661135267 is an equidigital number, since it uses as much as digits as its factorization.

6661135267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 43.

The square root of 6661135267 is about 81615.7782968465. The cubic root of 6661135267 is about 1881.5513890965.

The spelling of 6661135267 in words is "six billion, six hundred sixty-one million, one hundred thirty-five thousand, two hundred sixty-seven".