166106069 has 8 divisors (see below), whose sum is σ = 173819520. Its totient is φ = 158433616.

The previous prime is 166106041. The next prime is 166106071. The reversal of 166106069 is 960601661.

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 166106069 - 2⁸ = 166105813 is a prime.

It is a super-2 number, since 2×166106069² = 55182452317265522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166106009) 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, 1802 + ... + 18315.

It is an arithmetic number, because the mean of its divisors is an integer number (21727440).

Almost surely, 2^166106069 is an apocalyptic number.

It is an amenable number.

166106069 is a deficient number, since it is larger than the sum of its proper divisors (7713451).

166106069 is a wasteful number, since it uses less digits than its factorization.

166106069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20499.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 166106069 is about 12888.2143448967. The cubic root of 166106069 is about 549.7034974858.

The spelling of 166106069 in words is "one hundred sixty-six million, one hundred six thousand, sixty-nine".