66493846 has 8 divisors (see below), whose sum is σ = 100298520. Its totient is φ = 33061008.

The previous prime is 66493837. The next prime is 66493859. The reversal of 66493846 is 64839466.

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

It is a junction number, because it is equal to n+sod(n) for n = 66493796 and 66493805.

It is a congruent number.

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, 92511 + ... + 93226.

It is an arithmetic number, because the mean of its divisors is an integer number (12537315).

Almost surely, 2^66493846 is an apocalyptic number.

66493846 is a deficient number, since it is larger than the sum of its proper divisors (33804674).

66493846 is a wasteful number, since it uses less digits than its factorization.

66493846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185918.

The product of its digits is 746496, while the sum is 46.

The square root of 66493846 is about 8154.3758804706. The cubic root of 66493846 is about 405.1294531052.

The spelling of 66493846 in words is "sixty-six million, four hundred ninety-three thousand, eight hundred forty-six".