16069081 has 4 divisors (see below), whose sum is σ = 18364672. Its totient is φ = 13773492.

The previous prime is 16069061. The next prime is 16069087. The reversal of 16069081 is 18096061.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16069081 - 2⁷ = 16068953 is a prime.

It is a super-2 number, since 2×16069081² = 516430728369122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16069087) 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, 1147785 + ... + 1147798.

It is an arithmetic number, because the mean of its divisors is an integer number (4591168).

Almost surely, 2^16069081 is an apocalyptic number.

It is an amenable number.

16069081 is a deficient number, since it is larger than the sum of its proper divisors (2295591).

16069081 is an equidigital number, since it uses as much as digits as its factorization.

16069081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295590.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 16069081 is about 4008.6258243942. The cubic root of 16069081 is about 252.3463418275.

The spelling of 16069081 in words is "sixteen million, sixty-nine thousand, eighty-one".