2170441656 has 40 divisors (see below), whose sum is σ = 6079248120. Its totient is φ = 723480336.

The previous prime is 2170441631. The next prime is 2170441699. The reversal of 2170441656 is 6561440712.

2170441656 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2170441656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1674076 + ... + 1675371.

It is an arithmetic number, because the mean of its divisors is an integer number (151981203).

Almost surely, 2^2170441656 is an apocalyptic number.

It is an amenable number.

2170441656 is an abundant number, since it is smaller than the sum of its proper divisors (3908806464).

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

2170441656 is a wasteful number, since it uses less digits than its factorization.

2170441656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3349465 (or 3349452 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 2170441656 is about 46587.9990555508. Note that the first 3 decimals coincide. The cubic root of 2170441656 is about 1294.7404171541.

The spelling of 2170441656 in words is "two billion, one hundred seventy million, four hundred forty-one thousand, six hundred fifty-six".