66018842 has 8 divisors (see below), whose sum is σ = 99066432. Its totient is φ = 32996700.

The previous prime is 66018833. The next prime is 66018851. The reversal of 66018842 is 24881066.

It is an interprime number because it is at equal distance from previous prime (66018833) and next prime (66018851).

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

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, 2717 + ... + 11807.

It is an arithmetic number, because the mean of its divisors is an integer number (12383304).

Almost surely, 2^66018842 is an apocalyptic number.

66018842 is a deficient number, since it is larger than the sum of its proper divisors (33047590).

66018842 is a wasteful number, since it uses less digits than its factorization.

66018842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12724.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 66018842 is about 8125.1979668190. The cubic root of 66018842 is about 404.1624554963.

The spelling of 66018842 in words is "sixty-six million, eighteen thousand, eight hundred forty-two".