66345341 has 4 divisors (see below), whose sum is σ = 67756992. Its totient is φ = 64933692.

The previous prime is 66345313. The next prime is 66345361. The reversal of 66345341 is 14354366.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66345341 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 66345298 and 66345307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66345361) 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, 705755 + ... + 705848.

It is an arithmetic number, because the mean of its divisors is an integer number (16939248).

Almost surely, 2^66345341 is an apocalyptic number.

It is an amenable number.

66345341 is a deficient number, since it is larger than the sum of its proper divisors (1411651).

66345341 is a wasteful number, since it uses less digits than its factorization.

66345341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411650.

The product of its digits is 25920, while the sum is 32.

The square root of 66345341 is about 8145.2649435117. The cubic root of 66345341 is about 404.8276277088.

The spelling of 66345341 in words is "sixty-six million, three hundred forty-five thousand, three hundred forty-one".