66473018 has 8 divisors (see below), whose sum is σ = 100182720. Its totient is φ = 33078780.

The previous prime is 66473003. The next prime is 66473023. The reversal of 66473018 is 81037466.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 78338 + ... + 79181.

It is an arithmetic number, because the mean of its divisors is an integer number (12522840).

Almost surely, 2^66473018 is an apocalyptic number.

66473018 is a deficient number, since it is larger than the sum of its proper divisors (33709702).

66473018 is a wasteful number, since it uses less digits than its factorization.

66473018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157732.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 66473018 is about 8153.0986747371. The cubic root of 66473018 is about 405.0871488523.

The spelling of 66473018 in words is "sixty-six million, four hundred seventy-three thousand, eighteen".