165050505651045 has 32 divisors (see below), whose sum is σ = 301838500392192. Its totient is φ = 75443694354432.

The previous prime is 165050505651001. The next prime is 165050505651089. The reversal of 165050505651045 is 540156505050561.

It is an interprime number because it is at equal distance from previous prime (165050505651001) and next prime (165050505651089).

It is not a de Polignac number, because 165050505651045 - 2¹¹ = 165050505648997 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 165050505650985 and 165050505651003.

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, 81973222 + ... + 83962551.

It is an arithmetic number, because the mean of its divisors is an integer number (9432453137256).

Almost surely, 2^{165050505651045} is an apocalyptic number.

165050505651045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165050505651045 is a deficient number, since it is larger than the sum of its proper divisors (136787994741147).

165050505651045 is a wasteful number, since it uses less digits than its factorization.

165050505651045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165945261.

The product of its (nonzero) digits is 2250000, while the sum is 48.

The spelling of 165050505651045 in words is "one hundred sixty-five trillion, fifty billion, five hundred five million, six hundred fifty-one thousand, forty-five".