66301712 has 10 divisors (see below), whose sum is σ = 128459598. Its totient is φ = 33150848.

The previous prime is 66301699. The next prime is 66301721. The reversal of 66301712 is 21710366.

It can be written as a sum of positive squares in only one way, i.e., 63425296 + 2876416 = 7964^2 + 1696^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2071913 + ... + 2071944.

Almost surely, 2^66301712 is an apocalyptic number.

It is an amenable number.

66301712 is a deficient number, since it is larger than the sum of its proper divisors (62157886).

66301712 is a wasteful number, since it uses less digits than its factorization.

66301712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4143865 (or 4143859 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 66301712 is about 8142.5863213109. The cubic root of 66301712 is about 404.7388694161.

The spelling of 66301712 in words is "sixty-six million, three hundred one thousand, seven hundred twelve".