66343343 has 4 divisors (see below), whose sum is σ = 72374568. Its totient is φ = 60312120.

The previous prime is 66343337. The next prime is 66343351. The reversal of 66343343 is 34334366.

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

It is not a de Polignac number, because 66343343 - 2⁸ = 66343087 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 (66343373) 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, 3015596 + ... + 3015617.

It is an arithmetic number, because the mean of its divisors is an integer number (18093642).

Almost surely, 2^66343343 is an apocalyptic number.

66343343 is a deficient number, since it is larger than the sum of its proper divisors (6031225).

66343343 is a wasteful number, since it uses less digits than its factorization.

66343343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6031224.

The product of its digits is 46656, while the sum is 32.

The square root of 66343343 is about 8145.1422946441. The cubic root of 66343343 is about 404.8235638528.

The spelling of 66343343 in words is "sixty-six million, three hundred forty-three thousand, three hundred forty-three".