66741 has 4 divisors (see below), whose sum is σ = 88992. Its totient is φ = 44492.

The previous prime is 66739. The next prime is 66749. The reversal of 66741 is 14766.

66741 is nontrivially palindromic in base 11.

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 not a de Polignac number, because 66741 - 2¹ = 66739 is a prime.

It is a super-2 number, since 2×66741² = 8908722162, which contains 22 as substring.

It is a D-number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11121 + ... + 11126.

It is an arithmetic number, because the mean of its divisors is an integer number (22248).

2⁶⁶⁷⁴¹ is an apocalyptic number.

It is an amenable number.

66741 is a deficient number, since it is larger than the sum of its proper divisors (22251).

66741 is a wasteful number, since it uses less digits than its factorization.

66741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22250.

The product of its digits is 1008, while the sum is 24.

The square root of 66741 is about 258.3427955256. The cubic root of 66741 is about 40.5630780511.

The spelling of 66741 in words is "sixty-six thousand, seven hundred forty-one".