66312006 has 16 divisors (see below), whose sum is σ = 135859248. Its totient is φ = 21564800.

The previous prime is 66311981. The next prime is 66312023. The reversal of 66312006 is 60021366.

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 in 7 ways as a sum of consecutive naturals, for example, 134535 + ... + 135026.

It is an arithmetic number, because the mean of its divisors is an integer number (8491203).

Almost surely, 2^66312006 is an apocalyptic number.

66312006 is an abundant number, since it is smaller than the sum of its proper divisors (69547242).

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

66312006 is a wasteful number, since it uses less digits than its factorization.

66312006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269607.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 66312006 is about 8143.2184055200. The cubic root of 66312006 is about 404.7598149101.

The spelling of 66312006 in words is "sixty-six million, three hundred twelve thousand, six".