161500134134 has 8 divisors (see below), whose sum is σ = 242270616288. Its totient is φ = 80743262040.

The previous prime is 161500134091. The next prime is 161500134223. The reversal of 161500134134 is 431431005161.

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

It is a junction number, because it is equal to n+sod(n) for n = 161500134097 and 161500134106.

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, 3372797 + ... + 3420344.

It is an arithmetic number, because the mean of its divisors is an integer number (30283827036).

Almost surely, 2^161500134134 is an apocalyptic number.

161500134134 is a deficient number, since it is larger than the sum of its proper divisors (80770482154).

161500134134 is a wasteful number, since it uses less digits than its factorization.

161500134134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6805030.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 161500134134 its reverse (431431005161), we get a palindrome (592931139295).

The spelling of 161500134134 in words is "one hundred sixty-one billion, five hundred million, one hundred thirty-four thousand, one hundred thirty-four".