12551416563 has 8 divisors (see below), whose sum is σ = 19125968128. Its totient is φ = 7172238024.

The previous prime is 12551416541. The next prime is 12551416567. The reversal of 12551416563 is 36561415521.

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

It is not a de Polignac number, because 12551416563 - 2⁵ = 12551416531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12551416567) 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, 298843231 + ... + 298843272.

It is an arithmetic number, because the mean of its divisors is an integer number (2390746016).

Almost surely, 2^12551416563 is an apocalyptic number.

12551416563 is a deficient number, since it is larger than the sum of its proper divisors (6574551565).

12551416563 is an equidigital number, since it uses as much as digits as its factorization.

12551416563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597686513.

The product of its digits is 108000, while the sum is 39.

The spelling of 12551416563 in words is "twelve billion, five hundred fifty-one million, four hundred sixteen thousand, five hundred sixty-three".