41666145 has 16 divisors (see below), whose sum is σ = 70175040. Its totient is φ = 21052224.

The previous prime is 41666129. The next prime is 41666147. The reversal of 41666145 is 54166614.

It is a happy number.

It is not a de Polignac number, because 41666145 - 2⁴ = 41666129 is a prime.

It is a super-2 number, since 2×41666145² = 3472135278322050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (41666147) 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, 72814 + ... + 73383.

It is an arithmetic number, because the mean of its divisors is an integer number (4385940).

Almost surely, 2^41666145 is an apocalyptic number.

It is an amenable number.

41666145 is a deficient number, since it is larger than the sum of its proper divisors (28508895).

41666145 is a wasteful number, since it uses less digits than its factorization.

41666145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146224.

The product of its digits is 17280, while the sum is 33.

The square root of 41666145 is about 6454.9318354263. The cubic root of 41666145 is about 346.6791903554.

The spelling of 41666145 in words is "forty-one million, six hundred sixty-six thousand, one hundred forty-five".