201501606 has 16 divisors (see below), whose sum is σ = 403200000. Its totient is φ = 67134408.

The previous prime is 201501589. The next prime is 201501613. The reversal of 201501606 is 606105102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7395 + ... + 21393.

It is an arithmetic number, because the mean of its divisors is an integer number (25200000).

Almost surely, 2^201501606 is an apocalyptic number.

201501606 is an abundant number, since it is smaller than the sum of its proper divisors (201698394).

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

201501606 is a wasteful number, since it uses less digits than its factorization.

201501606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16403.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 201501606 is about 14195.1261354030. The cubic root of 201501606 is about 586.2634741850.

Adding to 201501606 its reverse (606105102), we get a palindrome (807606708).

The spelling of 201501606 in words is "two hundred one million, five hundred one thousand, six hundred six".