6156610616666 has 8 divisors (see below), whose sum is σ = 9234943263360. Its totient is φ = 3078296195548.

The previous prime is 6156610616641. The next prime is 6156610616683. The reversal of 6156610616666 is 6666160166516.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3678026 + ... + 5083413.

It is an arithmetic number, because the mean of its divisors is an integer number (1154367907920).

Almost surely, 2^{6156610616666} is an apocalyptic number.

6156610616666 is a deficient number, since it is larger than the sum of its proper divisors (3078332646694).

6156610616666 is a wasteful number, since it uses less digits than its factorization.

6156610616666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9112788.

The product of its (nonzero) digits is 8398080, while the sum is 56.

The spelling of 6156610616666 in words is "six trillion, one hundred fifty-six billion, six hundred ten million, six hundred sixteen thousand, six hundred sixty-six".