66886712 has 16 divisors (see below), whose sum is σ = 126924840. Its totient is φ = 33040096.

The previous prime is 66886681. The next prime is 66886723. The reversal of 66886712 is 21768866.

It is a congruent number.

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, 49703 + ... + 51030.

Almost surely, 2^66886712 is an apocalyptic number.

It is an amenable number.

66886712 is a deficient number, since it is larger than the sum of its proper divisors (60038128).

66886712 is a wasteful number, since it uses less digits than its factorization.

66886712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100822 (or 100818 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 66886712 is about 8178.4296781228. The cubic root of 66886712 is about 405.9257631583.

The spelling of 66886712 in words is "sixty-six million, eight hundred eighty-six thousand, seven hundred twelve".