165458452320 has 144 divisors (see below), whose sum is σ = 645288003360. Its totient is φ = 37819072512.

The previous prime is 165458452303. The next prime is 165458452333. The reversal of 165458452320 is 23254854561.

165458452320 is a `hidden beast` number, since 1 + 6 + 5 + 45 + 84 + 523 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8197185 + ... + 8217344.

It is an arithmetic number, because the mean of its divisors is an integer number (4481166690).

Almost surely, 2^165458452320 is an apocalyptic number.

165458452320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165458452320 is an abundant number, since it is smaller than the sum of its proper divisors (479829551040).

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

165458452320 is a wasteful number, since it uses less digits than its factorization.

165458452320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16414557 (or 16414546 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 45.

The spelling of 165458452320 in words is "one hundred sixty-five billion, four hundred fifty-eight million, four hundred fifty-two thousand, three hundred twenty".