66676250 has 40 divisors (see below), whose sum is σ = 128124612. Its totient is φ = 26000000.

The previous prime is 66676231. The next prime is 66676271. The reversal of 66676250 is 5267666.

It can be written as a sum of positive squares in 10 ways, for example, as 43414921 + 23261329 = 6589^2 + 4823^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 50600 + ... + 51900.

Almost surely, 2^66676250 is an apocalyptic number.

66676250 is a deficient number, since it is larger than the sum of its proper divisors (61448362).

66676250 is a wasteful number, since it uses less digits than its factorization.

66676250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364 (or 1349 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 66676250 is about 8165.5526451061. The cubic root of 66676250 is about 405.4995613637.

The spelling of 66676250 in words is "sixty-six million, six hundred seventy-six thousand, two hundred fifty".