3557136220 has 72 divisors (see below), whose sum is σ = 8411309424. Its totient is φ = 1261920000.

The previous prime is 3557136217. The next prime is 3557136221. The reversal of 3557136220 is 226317553.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3557136221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81295 + ... + 117145.

It is an arithmetic number, because the mean of its divisors is an integer number (116823742).

Almost surely, 2^3557136220 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 3557136220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4205654712).

3557136220 is an abundant number, since it is smaller than the sum of its proper divisors (4854173204).

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

3557136220 is a wasteful number, since it uses less digits than its factorization.

3557136220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35923 (or 35910 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 3557136220 is about 59641.7322015382. The cubic root of 3557136220 is about 1526.5117993674.

The spelling of 3557136220 in words is "three billion, five hundred fifty-seven million, one hundred thirty-six thousand, two hundred twenty".