161101516 has 12 divisors (see below), whose sum is σ = 282308320. Its totient is φ = 80442000.

The previous prime is 161101489. The next prime is 161101517. The reversal of 161101516 is 615101161.

161101516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (161101517) 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, 23811 + ... + 29818.

Almost surely, 2^161101516 is an apocalyptic number.

It is an amenable number.

161101516 is a deficient number, since it is larger than the sum of its proper divisors (121206804).

161101516 is a wasteful number, since it uses less digits than its factorization.

161101516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54384 (or 54382 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 22.

The square root of 161101516 is about 12692.5772008682. The cubic root of 161101516 is about 544.1264979400.

Adding to 161101516 its reverse (615101161), we get a palindrome (776202677).

The spelling of 161101516 in words is "one hundred sixty-one million, one hundred one thousand, five hundred sixteen".