66304706 has 8 divisors (see below), whose sum is σ = 107107644. Its totient is φ = 30602160.

The previous prime is 66304697. The next prime is 66304717. The reversal of 66304706 is 60740366.

It can be written as a sum of positive squares in 2 ways, for example, as 64947481 + 1357225 = 8059^2 + 1165^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1275065 + ... + 1275116.

Almost surely, 2^66304706 is an apocalyptic number.

66304706 is a deficient number, since it is larger than the sum of its proper divisors (40802938).

66304706 is a wasteful number, since it uses less digits than its factorization.

66304706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2550196.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 66304706 is about 8142.7701674553. The cubic root of 66304706 is about 404.7449616165.

The spelling of 66304706 in words is "sixty-six million, three hundred four thousand, seven hundred six".