4120081656 has 32 divisors (see below), whose sum is σ = 10316261760. Its totient is φ = 1371219552.

The previous prime is 4120081621. The next prime is 4120081663. The reversal of 4120081656 is 6561800214.

It is a congruent number.

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, 118060 + ... + 148923.

It is an arithmetic number, because the mean of its divisors is an integer number (322383180).

Almost surely, 2^4120081656 is an apocalyptic number.

It is an amenable number.

4120081656 is an abundant number, since it is smaller than the sum of its proper divisors (6196180104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4120081656 is a wasteful number, since it uses less digits than its factorization.

4120081656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267635 (or 267631 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 4120081656 is about 64187.8622170890. The cubic root of 4120081656 is about 1603.1295071664.

The spelling of 4120081656 in words is "four billion, one hundred twenty million, eighty-one thousand, six hundred fifty-six".