66743383 has 8 divisors (see below), whose sum is σ = 76333952. Its totient is φ = 57166776.

The previous prime is 66743363. The next prime is 66743393. The reversal of 66743383 is 38334766.

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-66743383 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 (66743363) 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, 10516 + ... + 15622.

It is an arithmetic number, because the mean of its divisors is an integer number (9541744).

Almost surely, 2^66743383 is an apocalyptic number.

66743383 is a deficient number, since it is larger than the sum of its proper divisors (9590569).

66743383 is a wasteful number, since it uses less digits than its factorization.

66743383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6981.

The product of its digits is 217728, while the sum is 40.

The square root of 66743383 is about 8169.6623553241. The cubic root of 66743383 is about 405.6356081613.

The spelling of 66743383 in words is "sixty-six million, seven hundred forty-three thousand, three hundred eighty-three".