161016132 has 24 divisors (see below), whose sum is σ = 378196672. Its totient is φ = 53316000.

The previous prime is 161016109. The next prime is 161016157. The reversal of 161016132 is 231610161.

It is a junction number, because it is equal to n+sod(n) for n = 161016099 and 161016108.

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, 42619 + ... + 46242.

Almost surely, 2^161016132 is an apocalyptic number.

161016132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161016132 is an abundant number, since it is smaller than the sum of its proper divisors (217180540).

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

161016132 is a wasteful number, since it uses less digits than its factorization.

161016132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89019 (or 89017 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 161016132 is about 12689.2132143802. The cubic root of 161016132 is about 544.0303517163.

Adding to 161016132 its reverse (231610161), we get a palindrome (392626293).

The spelling of 161016132 in words is "one hundred sixty-one million, sixteen thousand, one hundred thirty-two".