66414198 has 16 divisors (see below), whose sum is σ = 133018416. Its totient is φ = 22106400.

The previous prime is 66414169. The next prime is 66414199. The reversal of 66414198 is 89141466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66414199) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3153 + ... + 11948.

It is an arithmetic number, because the mean of its divisors is an integer number (8313651).

Almost surely, 2^66414198 is an apocalyptic number.

66414198 is an abundant number, since it is smaller than the sum of its proper divisors (66604218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66414198 is a wasteful number, since it uses less digits than its factorization.

66414198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15839.

The product of its digits is 41472, while the sum is 39.

The square root of 66414198 is about 8149.4906589308. The cubic root of 66414198 is about 404.9676303957.

The spelling of 66414198 in words is "sixty-six million, four hundred fourteen thousand, one hundred ninety-eight".