165463136565 has 32 divisors (see below), whose sum is σ = 278874624000. Its totient is φ = 83542466880.

The previous prime is 165463136563. The next prime is 165463136567. The reversal of 165463136565 is 565631364561.

165463136565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (165463136563) and next prime (165463136567).

It is not a de Polignac number, because 165463136565 - 2¹ = 165463136563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165463136563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191220 + ... + 606210.

It is an arithmetic number, because the mean of its divisors is an integer number (8714832000).

Almost surely, 2^165463136565 is an apocalyptic number.

165463136565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165463136565 is a deficient number, since it is larger than the sum of its proper divisors (113411487435).

165463136565 is a wasteful number, since it uses less digits than its factorization.

165463136565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416417.

The product of its digits is 5832000, while the sum is 51.

The spelling of 165463136565 in words is "one hundred sixty-five billion, four hundred sixty-three million, one hundred thirty-six thousand, five hundred sixty-five".