66329197 has 8 divisors (see below), whose sum is σ = 74315232. Its totient is φ = 58669200.

The previous prime is 66329167. The next prime is 66329233. The reversal of 66329197 is 79192366.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66329197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66329117) 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, 81079 + ... + 81892.

It is an arithmetic number, because the mean of its divisors is an integer number (9289404).

Almost surely, 2^66329197 is an apocalyptic number.

It is an amenable number.

66329197 is a deficient number, since it is larger than the sum of its proper divisors (7986035).

66329197 is a wasteful number, since it uses less digits than its factorization.

66329197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163019.

The product of its digits is 122472, while the sum is 43.

The square root of 66329197 is about 8144.2738780078. The cubic root of 66329197 is about 404.7947890934.

The spelling of 66329197 in words is "sixty-six million, three hundred twenty-nine thousand, one hundred ninety-seven".