6666458855 has 16 divisors (see below), whose sum is σ = 9180519744. Its totient is φ = 4552312320.

The previous prime is 6666458819. The next prime is 6666458867. The reversal of 6666458855 is 5588546666.

It is a de Polignac number, because none of the positive numbers 2^k-6666458855 is a prime.

It is a super-3 number, since 3×6666458855³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6666458794 and 6666458803.

It is a congruent number.

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, 386732 + ... + 403601.

It is an arithmetic number, because the mean of its divisors is an integer number (573782484).

Almost surely, 2^6666458855 is an apocalyptic number.

6666458855 is a deficient number, since it is larger than the sum of its proper divisors (2514060889).

6666458855 is a wasteful number, since it uses less digits than its factorization.

6666458855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790586.

The product of its digits is 41472000, while the sum is 59.

The square root of 6666458855 is about 81648.3855014905. The cubic root of 6666458855 is about 1882.0525017323.

The spelling of 6666458855 in words is "six billion, six hundred sixty-six million, four hundred fifty-eight thousand, eight hundred fifty-five".