66480042 has 8 divisors (see below), whose sum is σ = 132960096. Its totient is φ = 22160012.

The previous prime is 66480023. The next prime is 66480053. The reversal of 66480042 is 24008466.

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

66480042 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 66479991 and 66480009.

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 3 ways as a sum of consecutive naturals, for example, 5539998 + ... + 5540009.

It is an arithmetic number, because the mean of its divisors is an integer number (16620012).

Almost surely, 2^66480042 is an apocalyptic number.

66480042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66480042 is a wasteful number, since it uses less digits than its factorization.

66480042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11080012.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 66480042 is about 8153.5294198280. The cubic root of 66480042 is about 405.1014164555.

The spelling of 66480042 in words is "sixty-six million, four hundred eighty thousand, forty-two".