3220725551044 has 9 divisors (see below), whose sum is σ = 5636275995567. Its totient is φ = 1610360980884.

The previous prime is 3220725550993. The next prime is 3220725551047. The reversal of 3220725551044 is 4401555270223.

The square root of 3220725551044 is 1794638.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3220725550988 and 3220725551006.

It is not an unprimeable number, because it can be changed into a prime (3220725551047) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3140617 + ... + 4037935.

Almost surely, 2^{3220725551044} is an apocalyptic number.

3220725551044 is the 1794638-th square number.

It is an amenable number.

3220725551044 is a deficient number, since it is larger than the sum of its proper divisors (2415550444523).

3220725551044 is an frugal number, since it uses more digits than its factorization.

3220725551044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794642 (or 897321 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 40.

The spelling of 3220725551044 in words is "three trillion, two hundred twenty billion, seven hundred twenty-five million, five hundred fifty-one thousand, forty-four".