6600997147 has 2 divisors, whose sum is σ = 6600997148. Its totient is φ = 6600997146.

The previous prime is 6600997127. The next prime is 6600997159. The reversal of 6600997147 is 7417990066.

6600997147 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6600997147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6600997147.

It is not a weakly prime, because it can be changed into another prime (6600997127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3300498573 + 3300498574.

It is an arithmetic number, because the mean of its divisors is an integer number (3300498574).

Almost surely, 2^6600997147 is an apocalyptic number.

6600997147 is a deficient number, since it is larger than the sum of its proper divisors (1).

6600997147 is an equidigital number, since it uses as much as digits as its factorization.

6600997147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 571536, while the sum is 49.

The square root of 6600997147 is about 81246.5208301254. The cubic root of 6600997147 is about 1875.8719165625.

The spelling of 6600997147 in words is "six billion, six hundred million, nine hundred ninety-seven thousand, one hundred forty-seven".