45666081 has 6 divisors (see below), whose sum is σ = 65962130. Its totient is φ = 30444048.

The previous prime is 45666079. The next prime is 45666107. The reversal of 45666081 is 18066654.

45666081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 26873856 + 18792225 = 5184^2 + 4335^2 .

It is not a de Polignac number, because 45666081 - 2¹ = 45666079 is a prime.

It is a super-2 number, since 2×45666081² = 4170781907797122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45666001) 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 5 ways as a sum of consecutive naturals, for example, 2536996 + ... + 2537013.

Almost surely, 2^45666081 is an apocalyptic number.

It is an amenable number.

45666081 is a deficient number, since it is larger than the sum of its proper divisors (20296049).

45666081 is a wasteful number, since it uses less digits than its factorization.

45666081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5074015 (or 5074012 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 45666081 is about 6757.6683108895. The cubic root of 45666081 is about 357.4356896072.

The spelling of 45666081 in words is "forty-five million, six hundred sixty-six thousand, eighty-one".