65707066 has 4 divisors (see below), whose sum is σ = 98560602. Its totient is φ = 32853532.

The previous prime is 65707049. The next prime is 65707123. The reversal of 65707066 is 66070756.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 53949025 + 11758041 = 7345^2 + 3429^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16426765 + ... + 16426768.

Almost surely, 2^65707066 is an apocalyptic number.

65707066 is a deficient number, since it is larger than the sum of its proper divisors (32853536).

65707066 is a wasteful number, since it uses less digits than its factorization.

65707066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32853535.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 65707066 is about 8105.9895139335. The cubic root of 65707066 is about 403.5252281479.

The spelling of 65707066 in words is "sixty-five million, seven hundred seven thousand, sixty-six".