66056041 has 4 divisors (see below), whose sum is σ = 67592272. Its totient is φ = 64519812.

The previous prime is 66056017. The next prime is 66056051. The reversal of 66056041 is 14065066.

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 66056041 - 2⁹ = 66055529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66056051) 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, 768051 + ... + 768136.

It is an arithmetic number, because the mean of its divisors is an integer number (16898068).

Almost surely, 2^66056041 is an apocalyptic number.

It is an amenable number.

66056041 is a deficient number, since it is larger than the sum of its proper divisors (1536231).

66056041 is a wasteful number, since it uses less digits than its factorization.

66056041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536230.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 66056041 is about 8127.4867579099. The cubic root of 66056041 is about 404.2383510833.

The spelling of 66056041 in words is "sixty-six million, fifty-six thousand, forty-one".