6650977657349 has 4 divisors (see below), whose sum is σ = 6651561959136. Its totient is φ = 6650393355564.

The previous prime is 6650977657343. The next prime is 6650977657397. The reversal of 6650977657349 is 9437567790566.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6650977657349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6650977657343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292133819 + ... + 292156584.

It is an arithmetic number, because the mean of its divisors is an integer number (1662890489784).

Almost surely, 2^{6650977657349} is an apocalyptic number.

It is an amenable number.

6650977657349 is a deficient number, since it is larger than the sum of its proper divisors (584301787).

6650977657349 is a wasteful number, since it uses less digits than its factorization.

6650977657349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584301786.

The product of its (nonzero) digits is 1800338400, while the sum is 74.

The spelling of 6650977657349 in words is "six trillion, six hundred fifty billion, nine hundred seventy-seven million, six hundred fifty-seven thousand, three hundred forty-nine".