66735343 has 4 divisors (see below), whose sum is σ = 68888128. Its totient is φ = 64582560.

The previous prime is 66735311. The next prime is 66735349. The reversal of 66735343 is 34353766.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66735343 - 2⁵ = 66735311 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 (66735349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1076346 + ... + 1076407.

It is an arithmetic number, because the mean of its divisors is an integer number (17222032).

Almost surely, 2^66735343 is an apocalyptic number.

66735343 is a deficient number, since it is larger than the sum of its proper divisors (2152785).

66735343 is a wasteful number, since it uses less digits than its factorization.

66735343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152784.

The product of its digits is 136080, while the sum is 37.

The square root of 66735343 is about 8169.1702761052. The cubic root of 66735343 is about 405.6193196989.

The spelling of 66735343 in words is "sixty-six million, seven hundred thirty-five thousand, three hundred forty-three".