66310198 has 8 divisors (see below), whose sum is σ = 99617760. Its totient is φ = 33104280.

The previous prime is 66310187. The next prime is 66310201. The reversal of 66310198 is 89101366.

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, 23758 + ... + 26401.

It is an arithmetic number, because the mean of its divisors is an integer number (12452220).

Almost surely, 2^66310198 is an apocalyptic number.

66310198 is a deficient number, since it is larger than the sum of its proper divisors (33307562).

66310198 is a wasteful number, since it uses less digits than its factorization.

66310198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50822.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 66310198 is about 8143.1073921446. The cubic root of 66310198 is about 404.7561362781.

The spelling of 66310198 in words is "sixty-six million, three hundred ten thousand, one hundred ninety-eight".