805825120165 has 32 divisors (see below), whose sum is σ = 1076189248512. Its totient is φ = 575220096000.

The previous prime is 805825120159. The next prime is 805825120187. The reversal of 805825120165 is 561021528508.

It is not a de Polignac number, because 805825120165 - 2¹¹ = 805825118117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1548250 + ... + 2002180.

It is an arithmetic number, because the mean of its divisors is an integer number (33630914016).

Almost surely, 2^805825120165 is an apocalyptic number.

It is an amenable number.

805825120165 is a deficient number, since it is larger than the sum of its proper divisors (270364128347).

805825120165 is a wasteful number, since it uses less digits than its factorization.

805825120165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454861.

The product of its (nonzero) digits is 192000, while the sum is 43.

The spelling of 805825120165 in words is "eight hundred five billion, eight hundred twenty-five million, one hundred twenty thousand, one hundred sixty-five".