3601204563856 has 45 divisors (see below), whose sum is σ = 7294239476251. Its totient is φ = 1722231728096.

The previous prime is 3601204563811. The next prime is 3601204563857. The reversal of 3601204563856 is 6583654021063.

The square root of 3601204563856 is 1897684.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3601204563857) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 174576615 + ... + 174597241.

Almost surely, 2^{3601204563856} is an apocalyptic number.

3601204563856 is the 1897684-th square number.

It is an amenable number.

3601204563856 is an abundant number, since it is smaller than the sum of its proper divisors (3693034912395).

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

3601204563856 is an frugal number, since it uses more digits than its factorization.

3601204563856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41308 (or 20652 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 49.

Multiplying 3601204563856 by its sum of digits (49), we get a square (176459023628944 = 13283788²).

The spelling of 3601204563856 in words is "three trillion, six hundred one billion, two hundred four million, five hundred sixty-three thousand, eight hundred fifty-six".