165165616476 has 36 divisors (see below), whose sum is σ = 477145114992. Its totient is φ = 47190176064.

The previous prime is 165165616409. The next prime is 165165616487. The reversal of 165165616476 is 674616561561.

165165616476 is a `hidden beast` number, since 1 + 6 + 5 + 1 + 6 + 561 + 6 + 4 + 76 = 666.

165165616476 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 327709305 + ... + 327709808.

It is an arithmetic number, because the mean of its divisors is an integer number (13254030972).

Almost surely, 2^165165616476 is an apocalyptic number.

It is an amenable number.

165165616476 is an abundant number, since it is smaller than the sum of its proper divisors (311979498516).

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

165165616476 is a wasteful number, since it uses less digits than its factorization.

165165616476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655419130 (or 655419125 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The spelling of 165165616476 in words is "one hundred sixty-five billion, one hundred sixty-five million, six hundred sixteen thousand, four hundred seventy-six".