6600642007 has 2 divisors, whose sum is σ = 6600642008. Its totient is φ = 6600642006.

The previous prime is 6600641989. The next prime is 6600642017. The reversal of 6600642007 is 7002460066.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6600642007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6600642007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6600642017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3300321003 + 3300321004.

It is an arithmetic number, because the mean of its divisors is an integer number (3300321004).

Almost surely, 2^6600642007 is an apocalyptic number.

6600642007 is a deficient number, since it is larger than the sum of its proper divisors (1).

6600642007 is an equidigital number, since it uses as much as digits as its factorization.

6600642007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 6600642007 is about 81244.3352302177. The cubic root of 6600642007 is about 1875.8382747210.

The spelling of 6600642007 in words is "six billion, six hundred million, six hundred forty-two thousand, seven".