165043106136500 has 48 divisors (see below), whose sum is σ = 367255165442256. Its totient is φ = 64771634096000.

The previous prime is 165043106136499. The next prime is 165043106136533. The reversal of 165043106136500 is 5631601340561.

165043106136500 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 8 ways, for example, as 84690276263824 + 80352829872676 = 9202732^2 + 8963974^2 .

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, 3113994371 + ... + 3114047370.

It is an arithmetic number, because the mean of its divisors is an integer number (7651149280047).

Almost surely, 2^{165043106136500} is an apocalyptic number.

165043106136500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165043106136500 is an abundant number, since it is smaller than the sum of its proper divisors (202212059305756).

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

165043106136500 is a wasteful number, since it uses less digits than its factorization.

165043106136500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6228041813 (or 6228041801 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 165043106136500 in words is "one hundred sixty-five trillion, forty-three billion, one hundred six million, one hundred thirty-six thousand, five hundred".