16264999999 has 4 divisors (see below), whose sum is σ = 16972173936. Its totient is φ = 15557826064.

The previous prime is 16264999991. The next prime is 16265000021. The reversal of 16264999999 is 99999946261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99999946261 = 29 ⋅3448274009.

It is a cyclic number.

It is not a de Polignac number, because 16264999999 - 2³ = 16264999991 is a prime.

It is a Duffinian number.

16264999999 is a modest number, since divided by 999999 gives 16264 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16264999991) 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 3 ways as a sum of consecutive naturals, for example, 353586934 + ... + 353586979.

It is an arithmetic number, because the mean of its divisors is an integer number (4243043484).

Almost surely, 2^16264999999 is an apocalyptic number.

16264999999 is a deficient number, since it is larger than the sum of its proper divisors (707173937).

16264999999 is an equidigital number, since it uses as much as digits as its factorization.

16264999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707173936.

The product of its digits is 153055008, while the sum is 73.

The spelling of 16264999999 in words is "sixteen billion, two hundred sixty-four million, nine hundred ninety-nine thousand, nine hundred ninety-nine".