165241575250 has 16 divisors (see below), whose sum is σ = 309332229336. Its totient is φ = 66096630000.

The previous prime is 165241575221. The next prime is 165241575313. The reversal of 165241575250 is 52575142561.

165241575250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9730441449 + 155511133801 = 98643^2 + 394349^2 .

It is a super-2 number, since 2×165241575250² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 165241575197 and 165241575206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330482901 + ... + 330483400.

Almost surely, 2^165241575250 is an apocalyptic number.

165241575250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

165241575250 is a deficient number, since it is larger than the sum of its proper divisors (144090654086).

165241575250 is an equidigital number, since it uses as much as digits as its factorization.

165241575250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660966318 (or 660966308 counting only the distinct ones).

The product of its (nonzero) digits is 420000, while the sum is 43.

The spelling of 165241575250 in words is "one hundred sixty-five billion, two hundred forty-one million, five hundred seventy-five thousand, two hundred fifty".