6655666486 has 16 divisors (see below), whose sum is σ = 11718085536. Its totient is φ = 2775335616.

The previous prime is 6655666483. The next prime is 6655666487. The reversal of 6655666486 is 6846665566.

It is a self number, because there is not a number n which added to its sum of digits gives 6655666486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6655666483) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6423871 + ... + 6424906.

It is an arithmetic number, because the mean of its divisors is an integer number (732380346).

Almost surely, 2^6655666486 is an apocalyptic number.

6655666486 is a deficient number, since it is larger than the sum of its proper divisors (5062419050).

6655666486 is a wasteful number, since it uses less digits than its factorization.

6655666486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12848823.

The product of its digits is 37324800, while the sum is 58.

The square root of 6655666486 is about 81582.2682082326. The cubic root of 6655666486 is about 1881.0363312609.

The spelling of 6655666486 in words is "six billion, six hundred fifty-five million, six hundred sixty-six thousand, four hundred eighty-six".