66107241 has 6 divisors (see below), whose sum is σ = 95488250. Its totient is φ = 44071488.

The previous prime is 66107233. The next prime is 66107243. The reversal of 66107241 is 14270166.

66107241 is a `hidden beast` number, since 6 + 610 + 7 + 2 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 65853225 + 254016 = 8115^2 + 504^2 .

It is not a de Polignac number, because 66107241 - 2³ = 66107233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66107243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3672616 + ... + 3672633.

Almost surely, 2^66107241 is an apocalyptic number.

It is an amenable number.

66107241 is a deficient number, since it is larger than the sum of its proper divisors (29381009).

66107241 is a wasteful number, since it uses less digits than its factorization.

66107241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7345255 (or 7345252 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 66107241 is about 8130.6359529867. The cubic root of 66107241 is about 404.3427657498.

The spelling of 66107241 in words is "sixty-six million, one hundred seven thousand, two hundred forty-one".