66634341 has 4 divisors (see below), whose sum is σ = 88845792. Its totient is φ = 44422892.

The previous prime is 66634333. The next prime is 66634397. The reversal of 66634341 is 14343666.

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 66634341 - 2³ = 66634333 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66634301) 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, 11105721 + ... + 11105726.

It is an arithmetic number, because the mean of its divisors is an integer number (22211448).

Almost surely, 2^66634341 is an apocalyptic number.

It is an amenable number.

66634341 is a deficient number, since it is larger than the sum of its proper divisors (22211451).

66634341 is a wasteful number, since it uses less digits than its factorization.

66634341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22211450.

The product of its digits is 31104, while the sum is 33.

The square root of 66634341 is about 8162.9860345342. The cubic root of 66634341 is about 405.4145853646.

The spelling of 66634341 in words is "sixty-six million, six hundred thirty-four thousand, three hundred forty-one".