166006446 has 8 divisors (see below), whose sum is σ = 332012904. Its totient is φ = 55335480.

The previous prime is 166006429. The next prime is 166006483. The reversal of 166006446 is 644600661.

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

166006446 is an admirable number.

It is a super-2 number, since 2×166006446² = 55116280227101832, which contains 22 as substring.

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, 13833865 + ... + 13833876.

It is an arithmetic number, because the mean of its divisors is an integer number (41501613).

Almost surely, 2^166006446 is an apocalyptic number.

166006446 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

166006446 is a wasteful number, since it uses less digits than its factorization.

166006446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27667746.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 166006446 is about 12884.3488776112. The cubic root of 166006446 is about 549.5935796410.

The spelling of 166006446 in words is "one hundred sixty-six million, six thousand, four hundred forty-six".