161326016 has 28 divisors (see below), whose sum is σ = 323252592. Its totient is φ = 79876608.

The previous prime is 161326013. The next prime is 161326019. The reversal of 161326016 is 610623161.

It is an interprime number because it is at equal distance from previous prime (161326013) and next prime (161326019).

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161326013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5645 + ... + 18828.

Almost surely, 2^161326016 is an apocalyptic number.

161326016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

161326016 is an abundant number, since it is smaller than the sum of its proper divisors (161926576).

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

161326016 is a wasteful number, since it uses less digits than its factorization.

161326016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24588 (or 24578 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 161326016 is about 12701.4178736077. The cubic root of 161326016 is about 544.3791330544.

Adding to 161326016 its reverse (610623161), we get a palindrome (771949177).

The spelling of 161326016 in words is "one hundred sixty-one million, three hundred twenty-six thousand, sixteen".