66732746 has 8 divisors (see below), whose sum is σ = 100172640. Its totient is φ = 33341868.

The previous prime is 66732733. The next prime is 66732751. The reversal of 66732746 is 64723766.

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, 8636 + ... + 14423.

It is an arithmetic number, because the mean of its divisors is an integer number (12521580).

Almost surely, 2^66732746 is an apocalyptic number.

66732746 is a deficient number, since it is larger than the sum of its proper divisors (33439894).

66732746 is a wasteful number, since it uses less digits than its factorization.

66732746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24508.

The product of its digits is 254016, while the sum is 41.

The square root of 66732746 is about 8169.0113232875. The cubic root of 66732746 is about 405.6140580839.

The spelling of 66732746 in words is "sixty-six million, seven hundred thirty-two thousand, seven hundred forty-six".