4321901656 has 16 divisors (see below), whose sum is σ = 8126924040. Its totient is φ = 2154721920.

The previous prime is 4321901609. The next prime is 4321901669. The reversal of 4321901656 is 6561091234.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 775665 + ... + 781216.

Almost surely, 2^4321901656 is an apocalyptic number.

It is an amenable number.

4321901656 is a deficient number, since it is larger than the sum of its proper divisors (3805022384).

4321901656 is a wasteful number, since it uses less digits than its factorization.

4321901656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557234 (or 1557230 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 4321901656 is about 65741.1716962818. The cubic root of 4321901656 is about 1628.8895112215.

It can be divided in two parts, 432190 and 1656, that added together give a triangular number (433846 = T₉₃₁).

The spelling of 4321901656 in words is "four billion, three hundred twenty-one million, nine hundred one thousand, six hundred fifty-six".