166327563 has 8 divisors (see below), whose sum is σ = 223052688. Its totient is φ = 110243744.

The previous prime is 166327547. The next prime is 166327591. The reversal of 166327563 is 365723661.

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

It is a cyclic number.

It is not a de Polignac number, because 166327563 - 2⁴ = 166327547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166327363) 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, 159720 + ... + 160757.

It is an arithmetic number, because the mean of its divisors is an integer number (27881586).

Almost surely, 2^166327563 is an apocalyptic number.

166327563 is a deficient number, since it is larger than the sum of its proper divisors (56725125).

166327563 is a wasteful number, since it uses less digits than its factorization.

166327563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320653.

The product of its digits is 136080, while the sum is 39.

The square root of 166327563 is about 12896.8043716263. The cubic root of 166327563 is about 549.9477228549.

The spelling of 166327563 in words is "one hundred sixty-six million, three hundred twenty-seven thousand, five hundred sixty-three".