66830774 has 16 divisors (see below), whose sum is σ = 108148608. Its totient is φ = 30855552.

The previous prime is 66830773. The next prime is 66830789. The reversal of 66830774 is 47703866.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66830773) 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, 16742 + ... + 20345.

It is an arithmetic number, because the mean of its divisors is an integer number (6759288).

Almost surely, 2^66830774 is an apocalyptic number.

66830774 is a deficient number, since it is larger than the sum of its proper divisors (41317834).

66830774 is a wasteful number, since it uses less digits than its factorization.

66830774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37159.

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 66830774 is about 8175.0091131448. The cubic root of 66830774 is about 405.8125717259.

The spelling of 66830774 in words is "sixty-six million, eight hundred thirty thousand, seven hundred seventy-four".