166005660005 has 8 divisors (see below), whose sum is σ = 199369683072. Its totient is φ = 132695933968.

The previous prime is 166005659917. The next prime is 166005660013. The reversal of 166005660005 is 500066500661.

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 166005660005 - 2⁸ = 166005659749 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, 13567529 + ... + 13579758.

It is an arithmetic number, because the mean of its divisors is an integer number (24921210384).

Almost surely, 2^166005660005 is an apocalyptic number.

It is an amenable number.

166005660005 is a deficient number, since it is larger than the sum of its proper divisors (33364023067).

166005660005 is a wasteful number, since it uses less digits than its factorization.

166005660005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27148515.

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 166005660005 in words is "one hundred sixty-six billion, five million, six hundred sixty thousand, five".