66343304 has 8 divisors (see below), whose sum is σ = 124393710. Its totient is φ = 33171648.

The previous prime is 66343301. The next prime is 66343309. The reversal of 66343304 is 40334366.

It can be written as a sum of positive squares in only one way, i.e., 59320804 + 7022500 = 7702^2 + 2650^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (66343301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4146449 + ... + 4146464.

Almost surely, 2^66343304 is an apocalyptic number.

It is an amenable number.

66343304 is a deficient number, since it is larger than the sum of its proper divisors (58050406).

66343304 is a wasteful number, since it uses less digits than its factorization.

66343304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8292919 (or 8292915 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 29.

The square root of 66343304 is about 8145.1399005787. The cubic root of 66343304 is about 404.8234845275.

The spelling of 66343304 in words is "sixty-six million, three hundred forty-three thousand, three hundred four".