16069969 has 2 divisors, whose sum is σ = 16069970. Its totient is φ = 16069968.

The previous prime is 16069967. The next prime is 16069987. The reversal of 16069969 is 96996061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15563025 + 506944 = 3945^2 + 712^2 .

It is a cyclic number.

It is not a de Polignac number, because 16069969 - 2¹ = 16069967 is a prime.

It is a super-2 number, since 2×16069969² = 516487807321922, which contains 22 as substring.

Together with 16069967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16069967) 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 as a sum of consecutive naturals, namely, 8034984 + 8034985.

It is an arithmetic number, because the mean of its divisors is an integer number (8034985).

Almost surely, 2^16069969 is an apocalyptic number.

It is an amenable number.

16069969 is a deficient number, since it is larger than the sum of its proper divisors (1).

16069969 is an equidigital number, since it uses as much as digits as its factorization.

16069969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 157464, while the sum is 46.

The square root of 16069969 is about 4008.7365840125. The cubic root of 16069969 is about 252.3509900797.

The spelling of 16069969 in words is "sixteen million, sixty-nine thousand, nine hundred sixty-nine".