201135660 has 48 divisors (see below), whose sum is σ = 614380032. Its totient is φ = 48760000.

The previous prime is 201135647. The next prime is 201135731. The reversal of 201135660 is 66531102.

It is a self number, because there is not a number n which added to its sum of digits gives 201135660.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151716 + ... + 153035.

It is an arithmetic number, because the mean of its divisors is an integer number (12799584).

Almost surely, 2^201135660 is an apocalyptic number.

201135660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201135660 is an abundant number, since it is smaller than the sum of its proper divisors (413244372).

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

201135660 is a wasteful number, since it uses less digits than its factorization.

201135660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304774 (or 304772 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 201135660 is about 14182.2304310711. The cubic root of 201135660 is about 585.9083557913.

Adding to 201135660 its reverse (66531102), we get a palindrome (267666762).

The spelling of 201135660 in words is "two hundred one million, one hundred thirty-five thousand, six hundred sixty".