188165135218141 has 16 divisors (see below), whose sum is σ = 199974109506480. Its totient is φ = 176438567162880.

The previous prime is 188165135218103. The next prime is 188165135218169. The reversal of 188165135218141 is 141812531561881.

It is a happy number.

188165135218141 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 40717033380100 + 147448101838041 = 6380990^2 + 12142821^2 .

It is a cyclic number.

It is not a de Polignac number, because 188165135218141 - 2⁷ = 188165135218013 is a prime.

It is a super-2 number, since 2×188165135218141² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188165135218241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42440095 + ... + 46663603.

It is an arithmetic number, because the mean of its divisors is an integer number (12498381844155).

Almost surely, 2^{188165135218141} is an apocalyptic number.

It is an amenable number.

188165135218141 is a deficient number, since it is larger than the sum of its proper divisors (11808974288339).

188165135218141 is a wasteful number, since it uses less digits than its factorization.

188165135218141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4233264.

The product of its digits is 1843200, while the sum is 55.

The spelling of 188165135218141 in words is "one hundred eighty-eight trillion, one hundred sixty-five billion, one hundred thirty-five million, two hundred eighteen thousand, one hundred forty-one".