66165692 has 6 divisors (see below), whose sum is σ = 115789968. Its totient is φ = 33082844.

The previous prime is 66165689. The next prime is 66165703. The reversal of 66165692 is 29656166.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8270708 + ... + 8270715.

It is an arithmetic number, because the mean of its divisors is an integer number (19298328).

Almost surely, 2^66165692 is an apocalyptic number.

It is an amenable number.

66165692 is a deficient number, since it is larger than the sum of its proper divisors (49624276).

66165692 is a wasteful number, since it uses less digits than its factorization.

66165692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16541427 (or 16541425 counting only the distinct ones).

The product of its digits is 116640, while the sum is 41.

The square root of 66165692 is about 8134.2296500652. The cubic root of 66165692 is about 404.4619018504.

The spelling of 66165692 in words is "sixty-six million, one hundred sixty-five thousand, six hundred ninety-two".