166873966 has 8 divisors (see below), whose sum is σ = 286069680. Its totient is φ = 71517408.

The previous prime is 166873963. The next prime is 166873969. The reversal of 166873966 is 669378661.

It is an interprime number because it is at equal distance from previous prime (166873963) and next prime (166873969).

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 (166873963) 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, 5959771 + ... + 5959798.

It is an arithmetic number, because the mean of its divisors is an integer number (35758710).

Almost surely, 2^166873966 is an apocalyptic number.

166873966 is a deficient number, since it is larger than the sum of its proper divisors (119195714).

166873966 is a wasteful number, since it uses less digits than its factorization.

166873966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11919578.

The product of its digits is 1959552, while the sum is 52.

The square root of 166873966 is about 12917.9706610597. The cubic root of 166873966 is about 550.5492760577.

The spelling of 166873966 in words is "one hundred sixty-six million, eight hundred seventy-three thousand, nine hundred sixty-six".