4168245081 has 128 divisors (see below), whose sum is σ = 8058839040. Its totient is φ = 1845043200.

The previous prime is 4168245073. The next prime is 4168245083. The reversal of 4168245081 is 1805428614.

It is not a de Polignac number, because 4168245081 - 2³ = 4168245073 is a prime.

It is a super-2 number, since 2×4168245081² = 34748534110561393122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4168245083) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 2001961 + ... + 2004041.

It is an arithmetic number, because the mean of its divisors is an integer number (62959680).

Almost surely, 2^4168245081 is an apocalyptic number.

It is an amenable number.

4168245081 is a deficient number, since it is larger than the sum of its proper divisors (3890593959).

4168245081 is a wasteful number, since it uses less digits than its factorization.

4168245081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2167.

The product of its (nonzero) digits is 61440, while the sum is 39.

The square root of 4168245081 is about 64561.9476239681. The cubic root of 4168245081 is about 1609.3521409948.

The spelling of 4168245081 in words is "four billion, one hundred sixty-eight million, two hundred forty-five thousand, eighty-one".