71666332 has 6 divisors (see below), whose sum is σ = 125416088. Its totient is φ = 35833164.

The previous prime is 71666323. The next prime is 71666333. The reversal of 71666332 is 23366617.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71666333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8958288 + ... + 8958295.

Almost surely, 2^71666332 is an apocalyptic number.

It is an amenable number.

71666332 is a deficient number, since it is larger than the sum of its proper divisors (53749756).

71666332 is a wasteful number, since it uses less digits than its factorization.

71666332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17916587 (or 17916585 counting only the distinct ones).

The product of its digits is 27216, while the sum is 34.

The square root of 71666332 is about 8465.5969665464. The cubic root of 71666332 is about 415.3731235645.

The spelling of 71666332 in words is "seventy-one million, six hundred sixty-six thousand, three hundred thirty-two".