6556516136 has 16 divisors (see below), whose sum is σ = 12375976500. Its totient is φ = 3256255744.

The previous prime is 6556516133. The next prime is 6556516147. The reversal of 6556516136 is 6316156556.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4900840036 + 1655676100 = 70006^2 + 40690^2 .

It is not an unprimeable number, because it can be changed into a prime (6556516133) 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 3 ways as a sum of consecutive naturals, for example, 2749025 + ... + 2751408.

Almost surely, 2^6556516136 is an apocalyptic number.

It is an amenable number.

6556516136 is a deficient number, since it is larger than the sum of its proper divisors (5819460364).

6556516136 is a wasteful number, since it uses less digits than its factorization.

6556516136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5500588 (or 5500584 counting only the distinct ones).

The product of its digits is 486000, while the sum is 44.

The square root of 6556516136 is about 80972.3170966473. The cubic root of 6556516136 is about 1871.6488774883.

The spelling of 6556516136 in words is "six billion, five hundred fifty-six million, five hundred sixteen thousand, one hundred thirty-six".