166919064 has 64 divisors (see below), whose sum is σ = 453932640. Its totient is φ = 50841600.

The previous prime is 166919063. The next prime is 166919069. The reversal of 166919064 is 460919661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166919063) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 28864 + ... + 34160.

Almost surely, 2^166919064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166919064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226966320).

166919064 is an abundant number, since it is smaller than the sum of its proper divisors (287013576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166919064 is a wasteful number, since it uses less digits than its factorization.

166919064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5420 (or 5416 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 166919064 is about 12919.7160959520. The cubic root of 166919064 is about 550.5988672462.

The spelling of 166919064 in words is "one hundred sixty-six million, nine hundred nineteen thousand, sixty-four".