6665656055 has 8 divisors (see below), whose sum is σ = 8469304272. Its totient is φ = 5018846848.

The previous prime is 6665656031. The next prime is 6665656073. The reversal of 6665656055 is 5506565666.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6665656055 - 2²⁴ = 6648878839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6665655994 and 6665656012.

It is a congruent number.

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, 39209657 + ... + 39209826.

It is an arithmetic number, because the mean of its divisors is an integer number (1058663034).

Almost surely, 2^6665656055 is an apocalyptic number.

6665656055 is a deficient number, since it is larger than the sum of its proper divisors (1803648217).

6665656055 is a wasteful number, since it uses less digits than its factorization.

6665656055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78419505.

The product of its (nonzero) digits is 4860000, while the sum is 50.

The square root of 6665656055 is about 81643.4691509370. The cubic root of 6665656055 is about 1881.9769507571.

The spelling of 6665656055 in words is "six billion, six hundred sixty-five million, six hundred fifty-six thousand, fifty-five".