165847675536 has 45 divisors (see below), whose sum is σ = 464156824521. Its totient is φ = 55280929536.

The previous prime is 165847675517. The next prime is 165847675561. The reversal of 165847675536 is 635576748561.

The square root of 165847675536 is 407244.

It is a perfect power (a square), and thus also a powerful number.

165847675536 is a `hidden beast` number, since 1 + 6 + 5 + 8 + 4 + 76 + 7 + 553 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 164268090000 + 1579585536 = 405300^2 + 39744^2 .

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 4869960 + ... + 4903896.

Almost surely, 2^165847675536 is an apocalyptic number.

165847675536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

165847675536 is the 407244-th square number.

It is an amenable number.

165847675536 is an abundant number, since it is smaller than the sum of its proper divisors (298309148985).

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

165847675536 is an frugal number, since it uses more digits than its factorization.

165847675536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67888 (or 33942 counting only the distinct ones).

The product of its digits is 127008000, while the sum is 63.

The spelling of 165847675536 in words is "one hundred sixty-five billion, eight hundred forty-seven million, six hundred seventy-five thousand, five hundred thirty-six".