52205051665 has 32 divisors (see below), whose sum is σ = 70441249536. Its totient is φ = 36852752640.

The previous prime is 52205051651. The next prime is 52205051683. The reversal of 52205051665 is 56615050225.

It is not a de Polignac number, because 52205051665 - 2⁹ = 52205051153 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2661795 + ... + 2681335.

It is an arithmetic number, because the mean of its divisors is an integer number (2201289048).

Almost surely, 2^52205051665 is an apocalyptic number.

It is an amenable number.

52205051665 is a deficient number, since it is larger than the sum of its proper divisors (18236197871).

52205051665 is a wasteful number, since it uses less digits than its factorization.

52205051665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21369.

The product of its (nonzero) digits is 90000, while the sum is 37.

The spelling of 52205051665 in words is "fifty-two billion, two hundred five million, fifty-one thousand, six hundred sixty-five".