66936068 has 24 divisors (see below), whose sum is σ = 122465280. Its totient is φ = 31973760.

The previous prime is 66936059. The next prime is 66936073. The reversal of 66936068 is 86063966.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6380 + ... + 13212.

It is an arithmetic number, because the mean of its divisors is an integer number (5102720).

Almost surely, 2^66936068 is an apocalyptic number.

It is an amenable number.

66936068 is a deficient number, since it is larger than the sum of its proper divisors (55529212).

66936068 is a wasteful number, since it uses less digits than its factorization.

66936068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6947 (or 6945 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 66936068 is about 8181.4465713589. The cubic root of 66936068 is about 406.0255834138.

The spelling of 66936068 in words is "sixty-six million, nine hundred thirty-six thousand, sixty-eight".