161126455435135 has 4 divisors (see below), whose sum is σ = 193351746522168. Its totient is φ = 128901164348104.

The previous prime is 161126455435129. The next prime is 161126455435201. The reversal of 161126455435135 is 531534554621161.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 161126455435135 - 2¹¹ = 161126455433087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16112645543509 + ... + 16112645543518.

It is an arithmetic number, because the mean of its divisors is an integer number (48337936630542).

Almost surely, 2^{161126455435135} is an apocalyptic number.

161126455435135 is a deficient number, since it is larger than the sum of its proper divisors (32225291087033).

161126455435135 is an equidigital number, since it uses as much as digits as its factorization.

161126455435135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32225291087032.

The product of its digits is 6480000, while the sum is 52.

The spelling of 161126455435135 in words is "one hundred sixty-one trillion, one hundred twenty-six billion, four hundred fifty-five million, four hundred thirty-five thousand, one hundred thirty-five".