66910298 has 32 divisors (see below), whose sum is σ = 123935616. Its totient is φ = 26382528.

The previous prime is 66910271. The next prime is 66910303. The reversal of 66910298 is 89201966.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 102140 + ... + 102792.

It is an arithmetic number, because the mean of its divisors is an integer number (3872988).

Almost surely, 2^66910298 is an apocalyptic number.

66910298 is a deficient number, since it is larger than the sum of its proper divisors (57025318).

66910298 is a wasteful number, since it uses less digits than its factorization.

66910298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 66910298 is about 8179.8715148833. The cubic root of 66910298 is about 405.9734708899.

The spelling of 66910298 in words is "sixty-six million, nine hundred ten thousand, two hundred ninety-eight".