66364041 has 4 divisors (see below), whose sum is σ = 88485392. Its totient is φ = 44242692.

The previous prime is 66364027. The next prime is 66364043. The reversal of 66364041 is 14046366.

66364041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 66364041 - 2⁵ = 66364009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66364043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11060671 + ... + 11060676.

It is an arithmetic number, because the mean of its divisors is an integer number (22121348).

Almost surely, 2^66364041 is an apocalyptic number.

It is an amenable number.

66364041 is a deficient number, since it is larger than the sum of its proper divisors (22121351).

66364041 is a wasteful number, since it uses less digits than its factorization.

66364041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22121350.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 66364041 is about 8146.4127688204. The cubic root of 66364041 is about 404.8656588420.

The spelling of 66364041 in words is "sixty-six million, three hundred sixty-four thousand, forty-one".