166442064 has 20 divisors (see below), whose sum is σ = 429975456. Its totient is φ = 55480672.

The previous prime is 166442051. The next prime is 166442113. The reversal of 166442064 is 460244661.

166442064 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 1733724 + ... + 1733819.

Almost surely, 2^166442064 is an apocalyptic number.

It is an amenable number.

166442064 is an abundant number, since it is smaller than the sum of its proper divisors (263533392).

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

166442064 is a wasteful number, since it uses less digits than its factorization.

166442064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3467554 (or 3467548 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 166442064 is about 12901.2427308380. The cubic root of 166442064 is about 550.0738897973.

The spelling of 166442064 in words is "one hundred sixty-six million, four hundred forty-two thousand, sixty-four".