66387046 has 8 divisors (see below), whose sum is σ = 108633384. Its totient is φ = 30175920.

The previous prime is 66387037. The next prime is 66387047. The reversal of 66387046 is 64078366.

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

It is a super-2 number, since 2×66387046² = 8814479753212232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66387047) by changing a digit.

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, 1508775 + ... + 1508818.

It is an arithmetic number, because the mean of its divisors is an integer number (13579173).

Almost surely, 2^66387046 is an apocalyptic number.

66387046 is a deficient number, since it is larger than the sum of its proper divisors (42246338).

66387046 is a wasteful number, since it uses less digits than its factorization.

66387046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3017606.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 66387046 is about 8147.8246176510. The cubic root of 66387046 is about 404.9124354714.

The spelling of 66387046 in words is "sixty-six million, three hundred eighty-seven thousand, forty-six".