6556630499 has 4 divisors (see below), whose sum is σ = 6942314664. Its totient is φ = 6170946336.

The previous prime is 6556630469. The next prime is 6556630511. The reversal of 6556630499 is 9940366556.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6556630499 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 6556630499.

It is not an unprimeable number, because it can be changed into a prime (6556630429) 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 3 ways as a sum of consecutive naturals, for example, 192842057 + ... + 192842090.

It is an arithmetic number, because the mean of its divisors is an integer number (1735578666).

Almost surely, 2^6556630499 is an apocalyptic number.

6556630499 is a deficient number, since it is larger than the sum of its proper divisors (385684165).

6556630499 is a wasteful number, since it uses less digits than its factorization.

6556630499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385684164.

The product of its (nonzero) digits is 5248800, while the sum is 53.

The square root of 6556630499 is about 80973.0232793614. The cubic root of 6556630499 is about 1871.6597595955.

The spelling of 6556630499 in words is "six billion, five hundred fifty-six million, six hundred thirty thousand, four hundred ninety-nine".