66704632 has 8 divisors (see below), whose sum is σ = 125071200. Its totient is φ = 33352312.

The previous prime is 66704629. The next prime is 66704641. The reversal of 66704632 is 23640766.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4169032 + ... + 4169047.

It is an arithmetic number, because the mean of its divisors is an integer number (15633900).

Almost surely, 2^66704632 is an apocalyptic number.

It is an amenable number.

66704632 is a deficient number, since it is larger than the sum of its proper divisors (58366568).

66704632 is a wasteful number, since it uses less digits than its factorization.

66704632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8338085 (or 8338081 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 66704632 is about 8167.2903707411. The cubic root of 66704632 is about 405.5570893738.

The spelling of 66704632 in words is "sixty-six million, seven hundred four thousand, six hundred thirty-two".