6656459149 has 8 divisors (see below), whose sum is σ = 6741679392. Its totient is φ = 6571358640.

The previous prime is 6656459143. The next prime is 6656459167. The reversal of 6656459149 is 9419546566.

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 6656459149 - 2⁹ = 6656458637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6656459149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6656459143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84754 + ... + 143164.

It is an arithmetic number, because the mean of its divisors is an integer number (842709924).

Almost surely, 2^6656459149 is an apocalyptic number.

It is an amenable number.

6656459149 is a deficient number, since it is larger than the sum of its proper divisors (85220243).

6656459149 is a wasteful number, since it uses less digits than its factorization.

6656459149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59867.

The product of its digits is 6998400, while the sum is 55.

The square root of 6656459149 is about 81587.1261229368. The cubic root of 6656459149 is about 1881.1110029068. Note that the first 3 decimals are identical.

The spelling of 6656459149 in words is "six billion, six hundred fifty-six million, four hundred fifty-nine thousand, one hundred forty-nine".