165457117705328 has 20 divisors (see below), whose sum is σ = 337445437425960. Its totient is φ = 78374424176064.

The previous prime is 165457117705301. The next prime is 165457117705343. The reversal of 165457117705328 is 823507711754561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272133416975 + ... + 272133417582.

It is an arithmetic number, because the mean of its divisors is an integer number (16872271871298).

Almost surely, 2^{165457117705328} is an apocalyptic number.

It is an amenable number.

165457117705328 is an abundant number, since it is smaller than the sum of its proper divisors (171988319720632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165457117705328 is a wasteful number, since it uses less digits than its factorization.

165457117705328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544266834584 (or 544266834578 counting only the distinct ones).

The product of its (nonzero) digits is 49392000, while the sum is 62.

The spelling of 165457117705328 in words is "one hundred sixty-five trillion, four hundred fifty-seven billion, one hundred seventeen million, seven hundred five thousand, three hundred twenty-eight".