66050018 has 8 divisors (see below), whose sum is σ = 99118080. Its totient is φ = 33010660.

The previous prime is 66049999. The next prime is 66050027. The reversal of 66050018 is 81005066.

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

It is a Curzon 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 3 ways as a sum of consecutive naturals, for example, 23 + ... + 11493.

It is an arithmetic number, because the mean of its divisors is an integer number (12389760).

Almost surely, 2^66050018 is an apocalyptic number.

66050018 is a deficient number, since it is larger than the sum of its proper divisors (33068062).

66050018 is a wasteful number, since it uses less digits than its factorization.

66050018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14352.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 66050018 is about 8127.1162167155. The cubic root of 66050018 is about 404.2260645381.

The spelling of 66050018 in words is "sixty-six million, fifty thousand, eighteen".