3569561996 has 144 divisors (see below), whose sum is σ = 8987650560. Its totient is φ = 1216010880.

The previous prime is 3569561953. The next prime is 3569561999. The reversal of 3569561996 is 6991659653.

It is not an unprimeable number, because it can be changed into a prime (3569561999) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 529181 + ... + 535883.

It is an arithmetic number, because the mean of its divisors is an integer number (62414240).

Almost surely, 2^3569561996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3569561996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4493825280).

3569561996 is an abundant number, since it is smaller than the sum of its proper divisors (5418088564).

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

3569561996 is a wasteful number, since it uses less digits than its factorization.

3569561996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6764 (or 6755 counting only the distinct ones).

The product of its digits is 11809800, while the sum is 59.

The square root of 3569561996 is about 59745.8115352030. The cubic root of 3569561996 is about 1528.2872022800.

It can be divided in two parts, 3569 and 561996, that added together give a palindrome (565565).

The spelling of 3569561996 in words is "three billion, five hundred sixty-nine million, five hundred sixty-one thousand, nine hundred ninety-six".