165042515154044 has 48 divisors (see below), whose sum is σ = 315379395991296. Its totient is φ = 74948338416000.

The previous prime is 165042515153993. The next prime is 165042515154071. The reversal of 165042515154044 is 440451515240561.

It is a self number, because there is not a number n which added to its sum of digits gives 165042515154044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 323728424 + ... + 324237840.

It is an arithmetic number, because the mean of its divisors is an integer number (6570404083152).

Almost surely, 2^{165042515154044} is an apocalyptic number.

It is an amenable number.

165042515154044 is a deficient number, since it is larger than the sum of its proper divisors (150336880837252).

165042515154044 is a wasteful number, since it uses less digits than its factorization.

165042515154044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516386 (or 516384 counting only the distinct ones).

The product of its (nonzero) digits is 1920000, while the sum is 47.

The spelling of 165042515154044 in words is "one hundred sixty-five trillion, forty-two billion, five hundred fifteen million, one hundred fifty-four thousand, forty-four".