166106427 has 8 divisors (see below), whose sum is σ = 224279040. Its totient is φ = 109335720.

The previous prime is 166106411. The next prime is 166106441. The reversal of 166106427 is 724601661.

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

It is not a de Polignac number, because 166106427 - 2⁴ = 166106411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166106407) 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, 350199 + ... + 350672.

It is an arithmetic number, because the mean of its divisors is an integer number (28034880).

Almost surely, 2^166106427 is an apocalyptic number.

166106427 is a deficient number, since it is larger than the sum of its proper divisors (58172613).

166106427 is an equidigital number, since it uses as much as digits as its factorization.

166106427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700953.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 166106427 is about 12888.2282335471. The cubic root of 166106427 is about 549.7038924016.

The spelling of 166106427 in words is "one hundred sixty-six million, one hundred six thousand, four hundred twenty-seven".