166660541518 has 8 divisors (see below), whose sum is σ = 250293101112. Its totient is φ = 83229507816.

The previous prime is 166660541513. The next prime is 166660541533. The reversal of 166660541518 is 815145066661.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166660541513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50379405 + ... + 50382712.

It is an arithmetic number, because the mean of its divisors is an integer number (31286637639).

Almost surely, 2^166660541518 is an apocalyptic number.

166660541518 is a deficient number, since it is larger than the sum of its proper divisors (83632559594).

166660541518 is a wasteful number, since it uses less digits than its factorization.

166660541518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100762946.

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 166660541518 in words is "one hundred sixty-six billion, six hundred sixty million, five hundred forty-one thousand, five hundred eighteen".