165053553041045 has 8 divisors (see below), whose sum is σ = 199325819469624. Its totient is φ = 131201805219264.

The previous prime is 165053553041023. The next prime is 165053553041051. The reversal of 165053553041045 is 540140355350561.

It can be written as a sum of positive squares in 4 ways, for example, as 10407192136324 + 154646360904721 = 3226018^2 + 12435689^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 165053553041045 - 2¹⁰ = 165053553040021 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 7 ways as a sum of consecutive naturals, for example, 105129650834 + ... + 105129652403.

It is an arithmetic number, because the mean of its divisors is an integer number (24915727433703).

Almost surely, 2^{165053553041045} is an apocalyptic number.

It is an amenable number.

165053553041045 is a deficient number, since it is larger than the sum of its proper divisors (34272266428579).

165053553041045 is a wasteful number, since it uses less digits than its factorization.

165053553041045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210259303399.

The product of its (nonzero) digits is 2700000, while the sum is 47.

The spelling of 165053553041045 in words is "one hundred sixty-five trillion, fifty-three billion, five hundred fifty-three million, forty-one thousand, forty-five".