165710913009 has 16 divisors (see below), whose sum is σ = 228324702144. Its totient is φ = 106836408000.

The previous prime is 165710912963. The next prime is 165710913023. The reversal of 165710913009 is 900319017561.

It is not a de Polignac number, because 165710913009 - 2⁷ = 165710912881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165710913079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6346282 + ... + 6372339.

It is an arithmetic number, because the mean of its divisors is an integer number (14270293884).

Almost surely, 2^165710913009 is an apocalyptic number.

It is an amenable number.

165710913009 is a deficient number, since it is larger than the sum of its proper divisors (62613789135).

165710913009 is a wasteful number, since it uses less digits than its factorization.

165710913009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12718768.

The product of its (nonzero) digits is 51030, while the sum is 42.

The spelling of 165710913009 in words is "one hundred sixty-five billion, seven hundred ten million, nine hundred thirteen thousand, nine".