66910682 has 8 divisors (see below), whose sum is σ = 101360052. Its totient is φ = 33124000.

The previous prime is 66910643. The next prime is 66910687. The reversal of 66910682 is 28601966.

It can be written as a sum of positive squares in 2 ways, for example, as 66896041 + 14641 = 8179^2 + 121^2 .

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 (66910687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165419 + ... + 165822.

Almost surely, 2^66910682 is an apocalyptic number.

66910682 is a deficient number, since it is larger than the sum of its proper divisors (34449370).

66910682 is a wasteful number, since it uses less digits than its factorization.

66910682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331344.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 66910682 is about 8179.8949871010. The cubic root of 66910682 is about 405.9742475193.

The spelling of 66910682 in words is "sixty-six million, nine hundred ten thousand, six hundred eighty-two".