166545627 has 8 divisors (see below), whose sum is σ = 222139920. Its totient is φ = 110990880.

The previous prime is 166545571. The next prime is 166545647. The reversal of 166545627 is 726545661.

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

It is not a de Polignac number, because 166545627 - 2⁶ = 166545563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166545647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1977 + ... + 18357.

It is an arithmetic number, because the mean of its divisors is an integer number (27767490).

Almost surely, 2^166545627 is an apocalyptic number.

166545627 is a deficient number, since it is larger than the sum of its proper divisors (55594293).

166545627 is a wasteful number, since it uses less digits than its factorization.

166545627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19773.

The product of its digits is 302400, while the sum is 42.

The square root of 166545627 is about 12905.2557897936. The cubic root of 166545627 is about 550.1879544948.

The spelling of 166545627 in words is "one hundred sixty-six million, five hundred forty-five thousand, six hundred twenty-seven".