66701746 has 8 divisors (see below), whose sum is σ = 100490220. Its totient is φ = 33205008.

The previous prime is 66701741. The next prime is 66701773. The reversal of 66701746 is 64710766.

It can be written as a sum of positive squares in 2 ways, for example, as 63600625 + 3101121 = 7975^2 + 1761^2 .

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 (66701741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72361 + ... + 73276.

Almost surely, 2^66701746 is an apocalyptic number.

66701746 is a deficient number, since it is larger than the sum of its proper divisors (33788474).

66701746 is a wasteful number, since it uses less digits than its factorization.

66701746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145868.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 66701746 is about 8167.1136884459. The cubic root of 66701746 is about 405.5512404314.

The spelling of 66701746 in words is "sixty-six million, seven hundred one thousand, seven hundred forty-six".