6664655342 has 16 divisors (see below), whose sum is σ = 10514178432. Its totient is φ = 3163985760.

The previous prime is 6664655341. The next prime is 6664655351. The reversal of 6664655342 is 2435564666.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6664655341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1010813 + ... + 1017384.

It is an arithmetic number, because the mean of its divisors is an integer number (657136152).

Almost surely, 2^6664655342 is an apocalyptic number.

6664655342 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

6664655342 is a deficient number, since it is larger than the sum of its proper divisors (3849523090).

6664655342 is a wasteful number, since it uses less digits than its factorization.

6664655342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028283.

The product of its digits is 3110400, while the sum is 47.

The square root of 6664655342 is about 81637.3403657909. The cubic root of 6664655342 is about 1881.8827658267.

The spelling of 6664655342 in words is "six billion, six hundred sixty-four million, six hundred fifty-five thousand, three hundred forty-two".