66543006 has 16 divisors (see below), whose sum is σ = 133174800. Its totient is φ = 22166208.

The previous prime is 66542951. The next prime is 66543011. The reversal of 66543006 is 60034566.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9880 + ... + 15188.

It is an arithmetic number, because the mean of its divisors is an integer number (8323425).

Almost surely, 2^66543006 is an apocalyptic number.

66543006 is an abundant number, since it is smaller than the sum of its proper divisors (66631794).

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

66543006 is a wasteful number, since it uses less digits than its factorization.

66543006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7403.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 66543006 is about 8157.3896560113. The cubic root of 66543006 is about 405.2292681458.

The spelling of 66543006 in words is "sixty-six million, five hundred forty-three thousand, six".