66386030 has 8 divisors (see below), whose sum is σ = 119494872. Its totient is φ = 26554408.

The previous prime is 66386009. The next prime is 66386041. The reversal of 66386030 is 3068366.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3319292 + ... + 3319311.

It is an arithmetic number, because the mean of its divisors is an integer number (14936859).

Almost surely, 2^66386030 is an apocalyptic number.

66386030 is a deficient number, since it is larger than the sum of its proper divisors (53108842).

66386030 is a wasteful number, since it uses less digits than its factorization.

66386030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6638610.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 66386030 is about 8147.7622694823. The cubic root of 66386030 is about 404.9103698419.

The spelling of 66386030 in words is "sixty-six million, three hundred eighty-six thousand, thirty".