6136616666 has 8 divisors (see below), whose sum is σ = 9331020084. Its totient is φ = 3026276640.

The previous prime is 6136616663. The next prime is 6136616669. The reversal of 6136616666 is 6666166316.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6136616663) and next prime (6136616669).

It can be written as a sum of positive squares in 2 ways, for example, as 6026261641 + 110355025 = 77629^2 + 10505^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 6136616666.

It is not an unprimeable number, because it can be changed into a prime (6136616663) 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 3 ways as a sum of consecutive naturals, for example, 21015665 + ... + 21015956.

Almost surely, 2^6136616666 is an apocalyptic number.

6136616666 is a deficient number, since it is larger than the sum of its proper divisors (3194403418).

6136616666 is a wasteful number, since it uses less digits than its factorization.

6136616666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42031696.

The product of its digits is 839808, while the sum is 47.

The square root of 6136616666 is about 78336.5602129682. The cubic root of 6136616666 is about 1830.8088301511.

The spelling of 6136616666 in words is "six billion, one hundred thirty-six million, six hundred sixteen thousand, six hundred sixty-six".