6555343665 has 32 divisors (see below), whose sum is σ = 11301365376. Its totient is φ = 3225530880.

The previous prime is 6555343651. The next prime is 6555343673. The reversal of 6555343665 is 5663435556.

It is not a de Polignac number, because 6555343665 - 2⁶ = 6555343601 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 408850 + ... + 424580.

It is an arithmetic number, because the mean of its divisors is an integer number (353167668).

Almost surely, 2^6555343665 is an apocalyptic number.

6555343665 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6555343665 is a deficient number, since it is larger than the sum of its proper divisors (4746021711).

6555343665 is a wasteful number, since it uses less digits than its factorization.

6555343665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17889.

The product of its digits is 4860000, while the sum is 48.

The square root of 6555343665 is about 80965.0768232823. The cubic root of 6555343665 is about 1871.5373047766.

The spelling of 6555343665 in words is "six billion, five hundred fifty-five million, three hundred forty-three thousand, six hundred sixty-five".