166872516488 has 16 divisors (see below), whose sum is σ = 313063872000. Its totient is φ = 83388817296.

The previous prime is 166872516449. The next prime is 166872516497. The reversal of 166872516488 is 884615278661.

It is a self number, because there is not a number n which added to its sum of digits gives 166872516488.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5915168 + ... + 5943311.

It is an arithmetic number, because the mean of its divisors is an integer number (19566492000).

Almost surely, 2^166872516488 is an apocalyptic number.

It is an amenable number.

166872516488 is a deficient number, since it is larger than the sum of its proper divisors (146191355512).

166872516488 is a wasteful number, since it uses less digits than its factorization.

166872516488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11860244 (or 11860240 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 62.

The spelling of 166872516488 in words is "one hundred sixty-six billion, eight hundred seventy-two million, five hundred sixteen thousand, four hundred eighty-eight".