165053553041065 has 32 divisors (see below), whose sum is σ = 223196793716736. Its totient is φ = 116338096903680.

The previous prime is 165053553041057. The next prime is 165053553041173. The reversal of 165053553041065 is 560140355350561.

It is not a de Polignac number, because 165053553041065 - 2³ = 165053553041057 is a prime.

It is a Duffinian 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, 560896969 + ... + 561191158.

It is an arithmetic number, because the mean of its divisors is an integer number (6974899803648).

Almost surely, 2^{165053553041065} is an apocalyptic number.

It is an amenable number.

165053553041065 is a deficient number, since it is larger than the sum of its proper divisors (58143240675671).

165053553041065 is a wasteful number, since it uses less digits than its factorization.

165053553041065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122088249.

The product of its (nonzero) digits is 4050000, while the sum is 49.

The spelling of 165053553041065 in words is "one hundred sixty-five trillion, fifty-three billion, five hundred fifty-three million, forty-one thousand, sixty-five".