66712316 has 12 divisors (see below), whose sum is σ = 127359960. Its totient is φ = 30323760.

The previous prime is 66712273. The next prime is 66712337. The reversal of 66712316 is 61321766.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 758051 + ... + 758138.

It is an arithmetic number, because the mean of its divisors is an integer number (10613330).

Almost surely, 2^66712316 is an apocalyptic number.

It is an amenable number.

66712316 is a deficient number, since it is larger than the sum of its proper divisors (60647644).

66712316 is a wasteful number, since it uses less digits than its factorization.

66712316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516204 (or 1516202 counting only the distinct ones).

The product of its digits is 9072, while the sum is 32.

The square root of 66712316 is about 8167.7607702479. The cubic root of 66712316 is about 405.5726614109.

The spelling of 66712316 in words is "sixty-six million, seven hundred twelve thousand, three hundred sixteen".