201681016 has 16 divisors (see below), whose sum is σ = 378655200. Its totient is φ = 100706304.

The previous prime is 201680989. The next prime is 201681023. The reversal of 201681016 is 610186102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10240 + ... + 22543.

It is an arithmetic number, because the mean of its divisors is an integer number (23665950).

Almost surely, 2^201681016 is an apocalyptic number.

It is an amenable number.

201681016 is a deficient number, since it is larger than the sum of its proper divisors (176974184).

201681016 is a wasteful number, since it uses less digits than its factorization.

201681016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33558 (or 33554 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 201681016 is about 14201.4441519164. Note that the first 3 decimals coincide. The cubic root of 201681016 is about 586.4374187518.

The spelling of 201681016 in words is "two hundred one million, six hundred eighty-one thousand, sixteen".