66741369 has 4 divisors (see below), whose sum is σ = 88988496. Its totient is φ = 44494244.

The previous prime is 66741361. The next prime is 66741391. The reversal of 66741369 is 96314766.

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 66741369 - 2³ = 66741361 is a prime.

It is a super-2 number, since 2×66741369² = 8908820671988322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66741369.

It is not an unprimeable number, because it can be changed into a prime (66741361) 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, 11123559 + ... + 11123564.

It is an arithmetic number, because the mean of its divisors is an integer number (22247124).

Almost surely, 2^66741369 is an apocalyptic number.

It is an amenable number.

66741369 is a deficient number, since it is larger than the sum of its proper divisors (22247127).

66741369 is a wasteful number, since it uses less digits than its factorization.

66741369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22247126.

The product of its digits is 163296, while the sum is 42.

The square root of 66741369 is about 8169.5390934862. The cubic root of 66741369 is about 405.6315280648.

The spelling of 66741369 in words is "sixty-six million, seven hundred forty-one thousand, three hundred sixty-nine".