66500606 has 16 divisors (see below), whose sum is σ = 102549888. Its totient is φ = 32323200.

The previous prime is 66500597. The next prime is 66500641. The reversal of 66500606 is 60600566.

It is a congruent number.

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, 24371 + ... + 26961.

It is an arithmetic number, because the mean of its divisors is an integer number (6409368).

Almost surely, 2^66500606 is an apocalyptic number.

66500606 is a deficient number, since it is larger than the sum of its proper divisors (36049282).

66500606 is a wasteful number, since it uses less digits than its factorization.

66500606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2947.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 66500606 is about 8154.7903713094. The cubic root of 66500606 is about 405.1431816052.

The spelling of 66500606 in words is "sixty-six million, five hundred thousand, six hundred six".