161133063535 has 8 divisors (see below), whose sum is σ = 193370216256. Its totient is φ = 128899424160.

The previous prime is 161133063463. The next prime is 161133063569. The reversal of 161133063535 is 535360331161.

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

It is not a de Polignac number, because 161133063535 - 2⁷ = 161133063407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161133063494 and 161133063503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 776359 + ... + 961768.

It is an arithmetic number, because the mean of its divisors is an integer number (24171277032).

Almost surely, 2^161133063535 is an apocalyptic number.

161133063535 is a deficient number, since it is larger than the sum of its proper divisors (32237152721).

161133063535 is a wasteful number, since it uses less digits than its factorization.

161133063535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756673.

The product of its (nonzero) digits is 72900, while the sum is 37.

Adding to 161133063535 its reverse (535360331161), we get a palindrome (696493394696).

The spelling of 161133063535 in words is "one hundred sixty-one billion, one hundred thirty-three million, sixty-three thousand, five hundred thirty-five".