66097794 has 32 divisors (see below), whose sum is σ = 154598400. Its totient is φ = 18445392.

The previous prime is 66097783. The next prime is 66097813. The reversal of 66097794 is 49779066.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16494 + ... + 20105.

It is an arithmetic number, because the mean of its divisors is an integer number (4831200).

Almost surely, 2^66097794 is an apocalyptic number.

66097794 is an abundant number, since it is smaller than the sum of its proper divisors (88500606).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66097794 is a wasteful number, since it uses less digits than its factorization.

66097794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36654.

The product of its (nonzero) digits is 571536, while the sum is 48.

The square root of 66097794 is about 8130.0549813639. The cubic root of 66097794 is about 404.3235040773.

The spelling of 66097794 in words is "sixty-six million, ninety-seven thousand, seven hundred ninety-four".