6653880671 has 8 divisors (see below), whose sum is σ = 6844447344. Its totient is φ = 6465942720.

The previous prime is 6653880643. The next prime is 6653880677. The reversal of 6653880671 is 1760883566.

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 a de Polignac number, because none of the positive numbers 2^k-6653880671 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 (6653880677) 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 in 7 ways as a sum of consecutive naturals, for example, 652046 + ... + 662171.

It is an arithmetic number, because the mean of its divisors is an integer number (855555918).

Almost surely, 2^6653880671 is an apocalyptic number.

6653880671 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

6653880671 is a deficient number, since it is larger than the sum of its proper divisors (190566673).

6653880671 is a wasteful number, since it uses less digits than its factorization.

6653880671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314361.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 6653880671 is about 81571.3226017575. The cubic root of 6653880671 is about 1880.8680794719.

The spelling of 6653880671 in words is "six billion, six hundred fifty-three million, eight hundred eighty thousand, six hundred seventy-one".