6664597097 has 8 divisors (see below), whose sum is σ = 6947043840. Its totient is φ = 6385659280.

The previous prime is 6664597021. The next prime is 6664597103. The reversal of 6664597097 is 7907954666.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6664597097 - 2²⁸ = 6396161641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6664597997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 873353 + ... + 880950.

It is an arithmetic number, because the mean of its divisors is an integer number (868380480).

Almost surely, 2^6664597097 is an apocalyptic number.

It is an amenable number.

6664597097 is a deficient number, since it is larger than the sum of its proper divisors (282446743).

6664597097 is a wasteful number, since it uses less digits than its factorization.

6664597097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1754463.

The product of its (nonzero) digits is 17146080, while the sum is 59.

The square root of 6664597097 is about 81636.9836348698. The cubic root of 6664597097 is about 1881.8772836437.

The spelling of 6664597097 in words is "six billion, six hundred sixty-four million, five hundred ninety-seven thousand, ninety-seven".