12800555569 has 8 divisors (see below), whose sum is σ = 14266873440. Its totient is φ = 11413498176.

The previous prime is 12800555567. The next prime is 12800555591. The reversal of 12800555569 is 96555500821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12800555569 - 2¹ = 12800555567 is a prime.

It is a super-2 number, since 2×12800555569² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12800555567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19814779 + ... + 19815424.

It is an arithmetic number, because the mean of its divisors is an integer number (1783359180).

Almost surely, 2^12800555569 is an apocalyptic number.

12800555569 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12800555569 is a deficient number, since it is larger than the sum of its proper divisors (1466317871).

12800555569 is a wasteful number, since it uses less digits than its factorization.

12800555569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39630239.

The product of its (nonzero) digits is 540000, while the sum is 46.

The spelling of 12800555569 in words is "twelve billion, eight hundred million, five hundred fifty-five thousand, five hundred sixty-nine".