66179121 has 8 divisors (see below), whose sum is σ = 88696800. Its totient is φ = 43890432.

The previous prime is 66179101. The next prime is 66179129. The reversal of 66179121 is 12197166.

66179121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 66179121 - 2⁵ = 66179089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66179129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56571 + ... + 57728.

It is an arithmetic number, because the mean of its divisors is an integer number (11087100).

Almost surely, 2^66179121 is an apocalyptic number.

It is an amenable number.

66179121 is a deficient number, since it is larger than the sum of its proper divisors (22517679).

66179121 is a wasteful number, since it uses less digits than its factorization.

66179121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114495.

The product of its digits is 4536, while the sum is 33.

The square root of 66179121 is about 8135.0550704958. The cubic root of 66179121 is about 404.4892632180.

The spelling of 66179121 in words is "sixty-six million, one hundred seventy-nine thousand, one hundred twenty-one".