16299081 has 12 divisors (see below), whose sum is σ = 23578308. Its totient is φ = 10849824.

The previous prime is 16299013. The next prime is 16299103. The reversal of 16299081 is 18099261.

16299081 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6843456 + 9455625 = 2616^2 + 3075^2 .

It is not a de Polignac number, because 16299081 - 2¹⁰ = 16298057 is a prime.

It is a super-2 number, since 2×16299081² = 531320082889122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16294081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10171 + ... + 11663.

It is an arithmetic number, because the mean of its divisors is an integer number (1964859).

Almost surely, 2^16299081 is an apocalyptic number.

It is an amenable number.

16299081 is a deficient number, since it is larger than the sum of its proper divisors (7279227).

16299081 is a wasteful number, since it uses less digits than its factorization.

16299081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2712 (or 2709 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 16299081 is about 4037.2120330743. The cubic root of 16299081 is about 253.5446042680.

The spelling of 16299081 in words is "sixteen million, two hundred ninety-nine thousand, eighty-one".