66916202 has 16 divisors (see below), whose sum is σ = 103556232. Its totient is φ = 32405760.

The previous prime is 66916189. The next prime is 66916231. The reversal of 66916202 is 20261966.

It can be written as a sum of positive squares in 4 ways, for example, as 62552281 + 4363921 = 7909^2 + 2089^2 .

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 7 ways as a sum of consecutive naturals, for example, 15302 + ... + 19182.

Almost surely, 2^66916202 is an apocalyptic number.

66916202 is a deficient number, since it is larger than the sum of its proper divisors (36640030).

66916202 is a wasteful number, since it uses less digits than its factorization.

66916202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4153.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 66916202 is about 8180.2323927869. The cubic root of 66916202 is about 405.9854112386.

The spelling of 66916202 in words is "sixty-six million, nine hundred sixteen thousand, two hundred two".