7666007660671 has 8 divisors (see below), whose sum is σ = 7710223321584. Its totient is φ = 7621866376320.

The previous prime is 7666007660653. The next prime is 7666007660711. The reversal of 7666007660671 is 1760667006667.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7666007660671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7666007660471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18387400 + ... + 18799693.

It is an arithmetic number, because the mean of its divisors is an integer number (963777915198).

Almost surely, 2^{7666007660671} is an apocalyptic number.

7666007660671 is a deficient number, since it is larger than the sum of its proper divisors (44215660913).

7666007660671 is a wasteful number, since it uses less digits than its factorization.

7666007660671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37188281.

The product of its (nonzero) digits is 16003008, while the sum is 58.

The spelling of 7666007660671 in words is "seven trillion, six hundred sixty-six billion, seven million, six hundred sixty thousand, six hundred seventy-one".