165454615329 has 16 divisors (see below), whose sum is σ = 221271610560. Its totient is φ = 109970838720.

The previous prime is 165454615309. The next prime is 165454615393. The reversal of 165454615329 is 923516454561.

It is not a de Polignac number, because 165454615329 - 2⁵ = 165454615297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165454615309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1304667 + ... + 1425855.

It is an arithmetic number, because the mean of its divisors is an integer number (13829475660).

Almost surely, 2^165454615329 is an apocalyptic number.

It is an amenable number.

165454615329 is a deficient number, since it is larger than the sum of its proper divisors (55816995231).

165454615329 is a wasteful number, since it uses less digits than its factorization.

165454615329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122560.

The product of its digits is 3888000, while the sum is 51.

The spelling of 165454615329 in words is "one hundred sixty-five billion, four hundred fifty-four million, six hundred fifteen thousand, three hundred twenty-nine".