166272851 has 8 divisors (see below), whose sum is σ = 168434640. Its totient is φ = 164122848.

The previous prime is 166272823. The next prime is 166272859. The reversal of 166272851 is 158272661.

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 166272851 - 2²² = 162078547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166272859) 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, 27440 + ... + 32946.

It is an arithmetic number, because the mean of its divisors is an integer number (21054330).

Almost surely, 2^166272851 is an apocalyptic number.

166272851 is a deficient number, since it is larger than the sum of its proper divisors (2161789).

166272851 is a wasteful number, since it uses less digits than its factorization.

166272851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5893.

The product of its digits is 40320, while the sum is 38.

The square root of 166272851 is about 12894.6830515527. The cubic root of 166272851 is about 549.8874160743.

The spelling of 166272851 in words is "one hundred sixty-six million, two hundred seventy-two thousand, eight hundred fifty-one".