7666361681593 has 8 divisors (see below), whose sum is σ = 7669982059040. Its totient is φ = 7662741782400.

The previous prime is 7666361681509. The next prime is 7666361681623. The reversal of 7666361681593 is 3951861636667.

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 7666361681593 - 2⁹ = 7666361681081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7666361681893) 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, 34258918 + ... + 34481968.

It is an arithmetic number, because the mean of its divisors is an integer number (958747757380).

Almost surely, 2^{7666361681593} is an apocalyptic number.

It is an amenable number.

7666361681593 is a deficient number, since it is larger than the sum of its proper divisors (3620377447).

7666361681593 is a wasteful number, since it uses less digits than its factorization.

7666361681593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239127.

The product of its digits is 176359680, while the sum is 67.

The spelling of 7666361681593 in words is "seven trillion, six hundred sixty-six billion, three hundred sixty-one million, six hundred eighty-one thousand, five hundred ninety-three".