16264555665 has 16 divisors (see below), whose sum is σ = 26464363200. Its totient is φ = 8527404992.

The previous prime is 16264555631. The next prime is 16264555687. The reversal of 16264555665 is 56655546261.

16264555665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16264555665 - 2¹⁰ = 16264554641 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9188130 + ... + 9189899.

It is an arithmetic number, because the mean of its divisors is an integer number (1654022700).

Almost surely, 2^16264555665 is an apocalyptic number.

16264555665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16264555665 is a deficient number, since it is larger than the sum of its proper divisors (10199807535).

16264555665 is a wasteful number, since it uses less digits than its factorization.

16264555665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18378096.

The product of its digits is 6480000, while the sum is 51.

The spelling of 16264555665 in words is "sixteen billion, two hundred sixty-four million, five hundred fifty-five thousand, six hundred sixty-five".