4066016545 has 4 divisors (see below), whose sum is σ = 4879219860. Its totient is φ = 3252813232.

The previous prime is 4066016501. The next prime is 4066016551. The reversal of 4066016545 is 5456106604.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1596721681 + 2469294864 = 39959^2 + 49692^2 .

It is a cyclic number.

It is not a de Polignac number, because 4066016545 - 2⁷ = 4066016417 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406601650 + ... + 406601659.

It is an arithmetic number, because the mean of its divisors is an integer number (1219804965).

Almost surely, 2^4066016545 is an apocalyptic number.

It is an amenable number.

4066016545 is a deficient number, since it is larger than the sum of its proper divisors (813203315).

4066016545 is an equidigital number, since it uses as much as digits as its factorization.

4066016545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813203314.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 4066016545 is about 63765.3240013724. The cubic root of 4066016545 is about 1596.0863391388.

The spelling of 4066016545 in words is "four billion, sixty-six million, sixteen thousand, five hundred forty-five".