66275698 has 8 divisors (see below), whose sum is σ = 99452160. Its totient is φ = 33124980.

The previous prime is 66275669. The next prime is 66275761. The reversal of 66275698 is 89657266.

It is a happy number.

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

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, 2463 + ... + 11773.

It is an arithmetic number, because the mean of its divisors is an integer number (12431520).

Almost surely, 2^66275698 is an apocalyptic number.

66275698 is a deficient number, since it is larger than the sum of its proper divisors (33176462).

66275698 is a wasteful number, since it uses less digits than its factorization.

66275698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12872.

The product of its digits is 1088640, while the sum is 49.

The square root of 66275698 is about 8140.9887605868. The cubic root of 66275698 is about 404.6859283283.

The spelling of 66275698 in words is "sixty-six million, two hundred seventy-five thousand, six hundred ninety-eight".