16253499999 has 16 divisors (see below), whose sum is σ = 24669345024. Its totient is φ = 9422318400.

The previous prime is 16253499967. The next prime is 16253500007. The reversal of 16253499999 is 99999435261.

It is a happy number.

It is not a de Polignac number, because 16253499999 - 2⁵ = 16253499967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16253498999) 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 in 15 ways as a sum of consecutive naturals, for example, 10706422 + ... + 10707939.

It is an arithmetic number, because the mean of its divisors is an integer number (1541834064).

Almost surely, 2^16253499999 is an apocalyptic number.

16253499999 is a deficient number, since it is larger than the sum of its proper divisors (8415845025).

16253499999 is a wasteful number, since it uses less digits than its factorization.

16253499999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21414398.

The product of its digits is 42515280, while the sum is 66.

The spelling of 16253499999 in words is "sixteen billion, two hundred fifty-three million, four hundred ninety-nine thousand, nine hundred ninety-nine".