6555445555 has 16 divisors (see below), whose sum is σ = 8082063360. Its totient is φ = 5102008672.

The previous prime is 6555445543. The next prime is 6555445619. The reversal of 6555445555 is 5555445556.

It is not a de Polignac number, because 6555445555 - 2⁷ = 6555445427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6555445499 and 6555445508.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44275 + ... + 122764.

It is an arithmetic number, because the mean of its divisors is an integer number (505128960).

Almost surely, 2^6555445555 is an apocalyptic number.

6555445555 is a deficient number, since it is larger than the sum of its proper divisors (1526617805).

6555445555 is a wasteful number, since it uses less digits than its factorization.

6555445555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167258.

The product of its digits is 7500000, while the sum is 49.

The square root of 6555445555 is about 80965.7060427438. The cubic root of 6555445555 is about 1871.5470011891.

Subtracting from 6555445555 its reverse (5555445556), we obtain a palindrome (999999999).

The spelling of 6555445555 in words is "six billion, five hundred fifty-five million, four hundred forty-five thousand, five hundred fifty-five".