66164198 has 8 divisors (see below), whose sum is σ = 99495000. Its totient is φ = 32999200.

The previous prime is 66164183. The next prime is 66164239. The reversal of 66164198 is 89146166.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40448 + ... + 42051.

It is an arithmetic number, because the mean of its divisors is an integer number (12436875).

Almost surely, 2^66164198 is an apocalyptic number.

66164198 is a deficient number, since it is larger than the sum of its proper divisors (33330802).

66164198 is a wasteful number, since it uses less digits than its factorization.

66164198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82902.

The product of its digits is 62208, while the sum is 41.

The square root of 66164198 is about 8134.1378154049. The cubic root of 66164198 is about 404.4588576210.

The spelling of 66164198 in words is "sixty-six million, one hundred sixty-four thousand, one hundred ninety-eight".