6616661055005 has 8 divisors (see below), whose sum is σ = 8285210364672. Its totient is φ = 5063184111568.

The previous prime is 6616661054987. The next prime is 6616661055019. The reversal of 6616661055005 is 5005501666166.

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

It is a cyclic number.

It is not a de Polignac number, because 6616661055005 - 2³² = 6612366087709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28768091429 + ... + 28768091658.

It is an arithmetic number, because the mean of its divisors is an integer number (1035651295584).

Almost surely, 2^{6616661055005} is an apocalyptic number.

It is an amenable number.

6616661055005 is a deficient number, since it is larger than the sum of its proper divisors (1668549309667).

6616661055005 is a wasteful number, since it uses less digits than its factorization.

6616661055005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57536183115.

The product of its (nonzero) digits is 972000, while the sum is 47.

The spelling of 6616661055005 in words is "six trillion, six hundred sixteen billion, six hundred sixty-one million, fifty-five thousand, five".