66473080 has 16 divisors (see below), whose sum is σ = 149564520. Its totient is φ = 26589216.

The previous prime is 66473063. The next prime is 66473101. The reversal of 66473080 is 8037466.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 830874 + ... + 830953.

Almost surely, 2^66473080 is an apocalyptic number.

It is an amenable number.

66473080 is an abundant number, since it is smaller than the sum of its proper divisors (83091440).

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

66473080 is a wasteful number, since it uses less digits than its factorization.

66473080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661838 (or 1661834 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 66473080 is about 8153.1024769716. The cubic root of 66473080 is about 405.0872747951.

The spelling of 66473080 in words is "sixty-six million, four hundred seventy-three thousand, eighty".