6647014091 has 2 divisors, whose sum is σ = 6647014092. Its totient is φ = 6647014090.

The previous prime is 6647014069. The next prime is 6647014097. The reversal of 6647014091 is 1904107466.

It is a happy number.

6647014091 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-6647014091 is a prime.

It is not a weakly prime, because it can be changed into another prime (6647014097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3323507045 + 3323507046.

It is an arithmetic number, because the mean of its divisors is an integer number (3323507046).

Almost surely, 2^6647014091 is an apocalyptic number.

6647014091 is a deficient number, since it is larger than the sum of its proper divisors (1).

6647014091 is an equidigital number, since it uses as much as digits as its factorization.

6647014091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 6647014091 is about 81529.2223132295. Note that the first 3 decimals coincide. The cubic root of 6647014091 is about 1880.2208593516.

The spelling of 6647014091 in words is "six billion, six hundred forty-seven million, fourteen thousand, ninety-one".