201660528 has 80 divisors (see below), whose sum is σ = 580677120. Its totient is φ = 59931648.

The previous prime is 201660499. The next prime is 201660533. The reversal of 201660528 is 825066102.

It is a junction number, because it is equal to n+sod(n) for n = 201660495 and 201660504.

It is a congruent number.

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, 9001 + ... + 22007.

It is an arithmetic number, because the mean of its divisors is an integer number (7258464).

Almost surely, 2^201660528 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 201660528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290338560).

201660528 is an abundant number, since it is smaller than the sum of its proper divisors (379016592).

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

201660528 is a wasteful number, since it uses less digits than its factorization.

201660528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13054 (or 13048 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 201660528 is about 14200.7227985057. The cubic root of 201660528 is about 586.4175601041.

The spelling of 201660528 in words is "two hundred one million, six hundred sixty thousand, five hundred twenty-eight".