66318704 has 10 divisors (see below), whose sum is σ = 128492520. Its totient is φ = 33159344.

The previous prime is 66318701. The next prime is 66318709. The reversal of 66318704 is 40781366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66318701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2072444 + ... + 2072475.

It is an arithmetic number, because the mean of its divisors is an integer number (12849252).

Almost surely, 2^66318704 is an apocalyptic number.

It is an amenable number.

66318704 is a deficient number, since it is larger than the sum of its proper divisors (62173816).

66318704 is a wasteful number, since it uses less digits than its factorization.

66318704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4144927 (or 4144921 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 66318704 is about 8143.6296575913. The cubic root of 66318704 is about 404.7734423567.

The spelling of 66318704 in words is "sixty-six million, three hundred eighteen thousand, seven hundred four".