6555775556 has 24 divisors (see below), whose sum is σ = 12524635200. Its totient is φ = 2977740000.

The previous prime is 6555775549. The next prime is 6555775573.

It is a happy number.

6555775556 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8306 + ... + 114806.

It is an arithmetic number, because the mean of its divisors is an integer number (521859800).

Almost surely, 2^6555775556 is an apocalyptic number.

It is an amenable number.

6555775556 is a deficient number, since it is larger than the sum of its proper divisors (5968859644).

6555775556 is a wasteful number, since it uses less digits than its factorization.

6555775556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107915 (or 107913 counting only the distinct ones).

The product of its digits is 27562500, while the sum is 56.

The square root of 6555775556 is about 80967.7439231204. The cubic root of 6555775556 is about 1871.5784052085.

The spelling of 6555775556 in words is "six billion, five hundred fifty-five million, seven hundred seventy-five thousand, five hundred fifty-six".