2201609520 has 360 divisors, whose sum is σ = 8358871248. Its totient is φ = 518538240.

The previous prime is 2201609471. The next prime is 2201609521. The reversal of 2201609520 is 259061022.

2201609520 is a `hidden beast` number, since 2 + 2 + 0 + 1 + 609 + 52 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is not an unprimeable number, because it can be changed into a prime (2201609521) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3223099 + ... + 3223781.

Almost surely, 2^2201609520 is an apocalyptic number.

2201609520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2201609520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4179435624).

2201609520 is an abundant number, since it is smaller than the sum of its proper divisors (6157261728).

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

2201609520 is a wasteful number, since it uses less digits than its factorization.

2201609520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761 (or 741 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2201609520 is about 46921.3120021169. The cubic root of 2201609520 is about 1300.9085404362.

The spelling of 2201609520 in words is "two billion, two hundred one million, six hundred nine thousand, five hundred twenty".