66351343 has 8 divisors (see below), whose sum is σ = 69330816. Its totient is φ = 63379800.

The previous prime is 66351319. The next prime is 66351353. The reversal of 66351343 is 34315366.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66351343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66351353) 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 7 ways as a sum of consecutive naturals, for example, 20848 + ... + 23818.

It is an arithmetic number, because the mean of its divisors is an integer number (8666352).

Almost surely, 2^66351343 is an apocalyptic number.

66351343 is a deficient number, since it is larger than the sum of its proper divisors (2979473).

66351343 is a wasteful number, since it uses less digits than its factorization.

66351343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3965.

The product of its digits is 19440, while the sum is 31.

The square root of 66351343 is about 8145.6333700947. The cubic root of 66351343 is about 404.8398350576.

The spelling of 66351343 in words is "sixty-six million, three hundred fifty-one thousand, three hundred forty-three".