16000999969 has 2 divisors, whose sum is σ = 16000999970. Its totient is φ = 16000999968.

The previous prime is 16000999961. The next prime is 16001000003. The reversal of 16000999969 is 96999900061.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13391118400 + 2609881569 = 115720^2 + 51087^2 .

It is a cyclic number.

It is not a de Polignac number, because 16000999969 - 2³ = 16000999961 is a prime.

It is a super-2 number, since 2×16000999969² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16000999961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8000499984 + 8000499985.

It is an arithmetic number, because the mean of its divisors is an integer number (8000499985).

Almost surely, 2^16000999969 is an apocalyptic number.

It is an amenable number.

16000999969 is a deficient number, since it is larger than the sum of its proper divisors (1).

16000999969 is an equidigital number, since it uses as much as digits as its factorization.

16000999969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2125764, while the sum is 58.

The spelling of 16000999969 in words is "sixteen billion, nine hundred ninety-nine thousand, nine hundred sixty-nine".