166028027 has 8 divisors (see below), whose sum is σ = 181922112. Its totient is φ = 150267400.

The previous prime is 166028021. The next prime is 166028029. The reversal of 166028027 is 720820661.

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 166028027 - 2²² = 161833723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166027984 and 166028002.

It is not an unprimeable number, because it can be changed into a prime (166028021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30749 + ... + 35742.

It is an arithmetic number, because the mean of its divisors is an integer number (22740264).

Almost surely, 2^166028027 is an apocalyptic number.

166028027 is a deficient number, since it is larger than the sum of its proper divisors (15894085).

166028027 is a wasteful number, since it uses less digits than its factorization.

166028027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66729.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 166028027 is about 12885.1863393589. The cubic root of 166028027 is about 549.6173945097.

Adding to 166028027 its reverse (720820661), we get a palindrome (886848688).

The spelling of 166028027 in words is "one hundred sixty-six million, twenty-eight thousand, twenty-seven".