66600794 has 16 divisors (see below), whose sum is σ = 107721600. Its totient is φ = 30700080.

The previous prime is 66600767. The next prime is 66600797. The reversal of 66600794 is 49700666.

It is a super-2 number, since 2×66600794² = 8871331522860872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66600797) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 35459 + ... + 37289.

It is an arithmetic number, because the mean of its divisors is an integer number (6732600).

Almost surely, 2^66600794 is an apocalyptic number.

66600794 is a deficient number, since it is larger than the sum of its proper divisors (41120806).

66600794 is a wasteful number, since it uses less digits than its factorization.

66600794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3245.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 66600794 is about 8160.9309517971. The cubic root of 66600794 is about 405.3465387393.

The spelling of 66600794 in words is "sixty-six million, six hundred thousand, seven hundred ninety-four".