161528016 has 80 divisors (see below), whose sum is σ = 475844544. Its totient is φ = 46774272.

The previous prime is 161528009. The next prime is 161528041. The reversal of 161528016 is 610825161.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2995 + ... + 18221.

Almost surely, 2^161528016 is an apocalyptic number.

161528016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161528016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237922272).

161528016 is an abundant number, since it is smaller than the sum of its proper divisors (314316528).

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

161528016 is a wasteful number, since it uses less digits than its factorization.

161528016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15268 (or 15262 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 161528016 is about 12709.3672541162. The cubic root of 161528016 is about 544.6062481495.

The spelling of 161528016 in words is "one hundred sixty-one million, five hundred twenty-eight thousand, sixteen".