66450006 has 24 divisors (see below), whose sum is σ = 164543184. Its totient is φ = 18985680.

The previous prime is 66449983. The next prime is 66450017. The reversal of 66450006 is 60005466.

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 11 ways as a sum of consecutive naturals, for example, 263565 + ... + 263816.

It is an arithmetic number, because the mean of its divisors is an integer number (6855966).

Almost surely, 2^66450006 is an apocalyptic number.

66450006 is an abundant number, since it is smaller than the sum of its proper divisors (98093178).

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

66450006 is a wasteful number, since it uses less digits than its factorization.

66450006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527396 (or 527393 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 66450006 is about 8151.6873099991. The cubic root of 66450006 is about 405.0403983479.

The spelling of 66450006 in words is "sixty-six million, four hundred fifty thousand, six".