201652606605 has 32 divisors (see below), whose sum is σ = 337147441920. Its totient is φ = 102726835200.

The previous prime is 201652606601. The next prime is 201652606607. The reversal of 201652606605 is 506606256102.

It is a happy number.

It is not a de Polignac number, because 201652606605 - 2² = 201652606601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201652606601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167596 + ... + 656805.

It is an arithmetic number, because the mean of its divisors is an integer number (10535857560).

Almost surely, 2^201652606605 is an apocalyptic number.

It is an amenable number.

201652606605 is a deficient number, since it is larger than the sum of its proper divisors (135494835315).

201652606605 is a wasteful number, since it uses less digits than its factorization.

201652606605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825141.

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 201652606605 in words is "two hundred one billion, six hundred fifty-two million, six hundred six thousand, six hundred five".