166045146 has 8 divisors (see below), whose sum is σ = 332090304. Its totient is φ = 55348380.

The previous prime is 166045129. The next prime is 166045147. The reversal of 166045146 is 641540661.

It is a happy number.

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

166045146 is an admirable number.

It is a super-2 number, since 2×166045146² = 55141981020322632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (166045147) 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, 13837090 + ... + 13837101.

It is an arithmetic number, because the mean of its divisors is an integer number (41511288).

Almost surely, 2^166045146 is an apocalyptic number.

166045146 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.

166045146 is a wasteful number, since it uses less digits than its factorization.

166045146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27674196.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 166045146 is about 12885.8506122025. The cubic root of 166045146 is about 549.6362840449.

The spelling of 166045146 in words is "one hundred sixty-six million, forty-five thousand, one hundred forty-six".