66343708 has 6 divisors (see below), whose sum is σ = 116101496. Its totient is φ = 33171852.

The previous prime is 66343703. The next prime is 66343709. The reversal of 66343708 is 80734366.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66343703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8292960 + ... + 8292967.

Almost surely, 2^66343708 is an apocalyptic number.

It is an amenable number.

66343708 is a deficient number, since it is larger than the sum of its proper divisors (49757788).

66343708 is a wasteful number, since it uses less digits than its factorization.

66343708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16585931 (or 16585929 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 66343708 is about 8145.1647006061. The cubic root of 66343708 is about 404.8243062550.

The spelling of 66343708 in words is "sixty-six million, three hundred forty-three thousand, seven hundred eight".