161432191135 has 16 divisors (see below), whose sum is σ = 193954989312. Its totient is φ = 128988288000.

The previous prime is 161432191111. The next prime is 161432191153. The reversal of 161432191135 is 531191234161.

161432191135 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 161432191135 - 2²¹ = 161430093983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161432191094 and 161432191103.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 16299685 + ... + 16309585.

It is an arithmetic number, because the mean of its divisors is an integer number (12122186832).

Almost surely, 2^161432191135 is an apocalyptic number.

161432191135 is a deficient number, since it is larger than the sum of its proper divisors (32522798177).

161432191135 is a wasteful number, since it uses less digits than its factorization.

161432191135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13554.

The product of its digits is 19440, while the sum is 37.

The spelling of 161432191135 in words is "one hundred sixty-one billion, four hundred thirty-two million, one hundred ninety-one thousand, one hundred thirty-five".