66166010 has 8 divisors (see below), whose sum is σ = 119098836. Its totient is φ = 26466400.

The previous prime is 66165991. The next prime is 66166019. The reversal of 66166010 is 1066166.

It can be written as a sum of positive squares in 2 ways, for example, as 62900761 + 3265249 = 7931^2 + 1807^2 .

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

It is not an unprimeable number, because it can be changed into a prime (66166019) 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 3 ways as a sum of consecutive naturals, for example, 3308291 + ... + 3308310.

Almost surely, 2^66166010 is an apocalyptic number.

66166010 is a deficient number, since it is larger than the sum of its proper divisors (52932826).

66166010 is a wasteful number, since it uses less digits than its factorization.

66166010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6616608.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 66166010 is about 8134.2491970679. The cubic root of 66166010 is about 404.4625498130.

The spelling of 66166010 in words is "sixty-six million, one hundred sixty-six thousand, ten".