165010705557 has 16 divisors (see below), whose sum is σ = 221297854848. Its totient is φ = 109366087680.

The previous prime is 165010705537. The next prime is 165010705591. The reversal of 165010705557 is 755507010561.

It is a happy number.

It is not a de Polignac number, because 165010705557 - 2¹⁰ = 165010704533 is a prime.

It is a super-3 number, since 3×165010705557³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165010705507) 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, 807432 + ... + 990942.

It is an arithmetic number, because the mean of its divisors is an integer number (13831115928).

Almost surely, 2^165010705557 is an apocalyptic number.

It is an amenable number.

165010705557 is a deficient number, since it is larger than the sum of its proper divisors (56287149291).

165010705557 is a wasteful number, since it uses less digits than its factorization.

165010705557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185260.

The product of its (nonzero) digits is 183750, while the sum is 42.

The spelling of 165010705557 in words is "one hundred sixty-five billion, ten million, seven hundred five thousand, five hundred fifty-seven".