161000535434 has 8 divisors (see below), whose sum is σ = 241996699488. Its totient is φ = 80334968940.

The previous prime is 161000535413. The next prime is 161000535439. The reversal of 161000535434 is 434535000161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 161000535434.

It is not an unprimeable number, because it can be changed into a prime (161000535439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82648172 + ... + 82650119.

It is an arithmetic number, because the mean of its divisors is an integer number (30249587436).

Almost surely, 2^161000535434 is an apocalyptic number.

161000535434 is a deficient number, since it is larger than the sum of its proper divisors (80996164054).

161000535434 is a wasteful number, since it uses less digits than its factorization.

161000535434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165298780.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 161000535434 its reverse (434535000161), we get a palindrome (595535535595).

The spelling of 161000535434 in words is "one hundred sixty-one billion, five hundred thirty-five thousand, four hundred thirty-four".