165543749151 has 16 divisors (see below), whose sum is σ = 240805119360. Its totient is φ = 100323623520.

The previous prime is 165543749141. The next prime is 165543749167. The reversal of 165543749151 is 151947345561.

165543749151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 165543749151 - 2¹⁵ = 165543716383 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165543749094 and 165543749103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165543749101) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 456405 + ... + 734433.

It is an arithmetic number, because the mean of its divisors is an integer number (15050319960).

Almost surely, 2^165543749151 is an apocalyptic number.

165543749151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

165543749151 is a deficient number, since it is larger than the sum of its proper divisors (75261370209).

165543749151 is a wasteful number, since it uses less digits than its factorization.

165543749151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296086.

The product of its digits is 2268000, while the sum is 51.

The spelling of 165543749151 in words is "one hundred sixty-five billion, five hundred forty-three million, seven hundred forty-nine thousand, one hundred fifty-one".