166417982 has 8 divisors (see below), whose sum is σ = 257679552. Its totient is φ = 80524800.

The previous prime is 166417973. The next prime is 166418029. The reversal of 166417982 is 289714661.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1342019 + ... + 1342142.

It is an arithmetic number, because the mean of its divisors is an integer number (32209944).

Almost surely, 2^166417982 is an apocalyptic number.

166417982 is a deficient number, since it is larger than the sum of its proper divisors (91261570).

166417982 is a wasteful number, since it uses less digits than its factorization.

166417982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2684194.

The product of its digits is 145152, while the sum is 44.

The square root of 166417982 is about 12900.3093761351. The cubic root of 166417982 is about 550.0473590073.

The spelling of 166417982 in words is "one hundred sixty-six million, four hundred seventeen thousand, nine hundred eighty-two".