66411105 has 16 divisors (see below), whose sum is σ = 107072064. Its totient is φ = 35147840.

The previous prime is 66411091. The next prime is 66411109. The reversal of 66411105 is 50111466.

It is not a de Polignac number, because 66411105 - 2⁴ = 66411089 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66411109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14934 + ... + 18863.

It is an arithmetic number, because the mean of its divisors is an integer number (6692004).

Almost surely, 2^66411105 is an apocalyptic number.

It is an amenable number.

66411105 is a deficient number, since it is larger than the sum of its proper divisors (40660959).

66411105 is a wasteful number, since it uses less digits than its factorization.

66411105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33936.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 66411105 is about 8149.3008902605. The cubic root of 66411105 is about 404.9613436660.

The spelling of 66411105 in words is "sixty-six million, four hundred eleven thousand, one hundred five".