16088881 has 4 divisors (see below), whose sum is σ = 16643700. Its totient is φ = 15534064.

The previous prime is 16088879. The next prime is 16088893. The reversal of 16088881 is 18888061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18888061 = 83 ⋅227567.

It can be written as a sum of positive squares in 2 ways, for example, as 12816400 + 3272481 = 3580^2 + 1809^2 .

It is a cyclic number.

It is not a de Polignac number, because 16088881 - 2¹ = 16088879 is a prime.

It is a super-2 number, since 2×16088881² = 517704183664322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16388881) 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, 277366 + ... + 277423.

It is an arithmetic number, because the mean of its divisors is an integer number (4160925).

Almost surely, 2^16088881 is an apocalyptic number.

It is an amenable number.

16088881 is a deficient number, since it is larger than the sum of its proper divisors (554819).

16088881 is an equidigital number, since it uses as much as digits as its factorization.

16088881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554818.

The product of its (nonzero) digits is 24576, while the sum is 40.

The square root of 16088881 is about 4011.0947383476. The cubic root of 16088881 is about 252.4499446574.

The spelling of 16088881 in words is "sixteen million, eighty-eight thousand, eight hundred eighty-one".