166983360001 has 4 divisors (see below), whose sum is σ = 174243506112. Its totient is φ = 159723213892.

The previous prime is 166983359941. The next prime is 166983360041. The reversal of 166983360001 is 100063389661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166983360001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166983360001.

It is not an unprimeable number, because it can be changed into a prime (166983360041) 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, 3630073021 + ... + 3630073066.

It is an arithmetic number, because the mean of its divisors is an integer number (43560876528).

Almost surely, 2^166983360001 is an apocalyptic number.

It is an amenable number.

166983360001 is a deficient number, since it is larger than the sum of its proper divisors (7260146111).

166983360001 is an equidigital number, since it uses as much as digits as its factorization.

166983360001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7260146110.

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 166983360001 in words is "one hundred sixty-six billion, nine hundred eighty-three million, three hundred sixty thousand, one".