165012052050605 has 16 divisors (see below), whose sum is σ = 198266587878528. Its totient is φ = 131841635640000.

The previous prime is 165012052050557. The next prime is 165012052050661. The reversal of 165012052050605 is 506050250210561.

It is not a de Polignac number, because 165012052050605 - 2²² = 165012047856301 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 15 ways as a sum of consecutive naturals, for example, 12168110 + ... + 21865200.

It is an arithmetic number, because the mean of its divisors is an integer number (12391661742408).

Almost surely, 2^{165012052050605} is an apocalyptic number.

It is an amenable number.

165012052050605 is a deficient number, since it is larger than the sum of its proper divisors (33254535827923).

165012052050605 is a wasteful number, since it uses less digits than its factorization.

165012052050605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9701428.

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 165012052050605 in words is "one hundred sixty-five trillion, twelve billion, fifty-two million, fifty thousand, six hundred five".