161030515236 has 12 divisors (see below), whose sum is σ = 375737868912. Its totient is φ = 53676838408.

The previous prime is 161030515201. The next prime is 161030515259. The reversal of 161030515236 is 632515030161.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 161030515197 and 161030515206.

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, 6709604790 + ... + 6709604813.

It is an arithmetic number, because the mean of its divisors is an integer number (31311489076).

Almost surely, 2^161030515236 is an apocalyptic number.

It is an amenable number.

161030515236 is an abundant number, since it is smaller than the sum of its proper divisors (214707353676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161030515236 is a wasteful number, since it uses less digits than its factorization.

161030515236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13419209610 (or 13419209608 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 33.

Adding to 161030515236 its reverse (632515030161), we get a palindrome (793545545397).

The spelling of 161030515236 in words is "one hundred sixty-one billion, thirty million, five hundred fifteen thousand, two hundred thirty-six".