4081009604661 has 12 divisors (see below), whose sum is σ = 6430681801440. Its totient is φ = 2473339154280.

The previous prime is 4081009604569. The next prime is 4081009604717. The reversal of 4081009604661 is 1664069001804.

4081009604661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4081009604661 - 2⁹ = 4081009604149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4081009602661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20611159521 + ... + 20611159718.

It is an arithmetic number, because the mean of its divisors is an integer number (535890150120).

Almost surely, 2^{4081009604661} is an apocalyptic number.

It is an amenable number.

4081009604661 is a deficient number, since it is larger than the sum of its proper divisors (2349672196779).

4081009604661 is a wasteful number, since it uses less digits than its factorization.

4081009604661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41222319256 (or 41222319253 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 4081009604661 in words is "four trillion, eighty-one billion, nine million, six hundred four thousand, six hundred sixty-one".