6690306607 has 2 divisors, whose sum is σ = 6690306608. Its totient is φ = 6690306606.

The previous prime is 6690306551. The next prime is 6690306629. The reversal of 6690306607 is 7066030966.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6690306607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6690306647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3345153303 + 3345153304.

It is an arithmetic number, because the mean of its divisors is an integer number (3345153304).

Almost surely, 2^6690306607 is an apocalyptic number.

6690306607 is a deficient number, since it is larger than the sum of its proper divisors (1).

6690306607 is an equidigital number, since it uses as much as digits as its factorization.

6690306607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 43.

The square root of 6690306607 is about 81794.2944648342. The cubic root of 6690306607 is about 1884.2940370126.

The spelling of 6690306607 in words is "six billion, six hundred ninety million, three hundred six thousand, six hundred seven".