4005161995 has 8 divisors (see below), whose sum is σ = 4812702480. Its totient is φ = 3199790880.

The previous prime is 4005161939. The next prime is 4005162023. The reversal of 4005161995 is 5991615004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4005161995 - 2⁹ = 4005161483 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 538276 + ... + 545665.

It is an arithmetic number, because the mean of its divisors is an integer number (601587810).

Almost surely, 2^4005161995 is an apocalyptic number.

4005161995 is a deficient number, since it is larger than the sum of its proper divisors (807540485).

4005161995 is a wasteful number, since it uses less digits than its factorization.

4005161995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084685.

The product of its (nonzero) digits is 48600, while the sum is 40.

The square root of 4005161995 is about 63286.3491994917. The cubic root of 4005161995 is about 1588.0836047989.

Adding to 4005161995 its reverse (5991615004), we get a palindrome (9996776999).

The spelling of 4005161995 in words is "four billion, five million, one hundred sixty-one thousand, nine hundred ninety-five".