12551366407573 has 16 divisors (see below), whose sum is σ = 14359522090624. Its totient is φ = 10746987647040.

The previous prime is 12551366407553. The next prime is 12551366407579. The reversal of 12551366407573 is 37570466315521.

It is a cyclic number.

It is not a de Polignac number, because 12551366407573 - 2⁹ = 12551366407061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12551366407579) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211482883 + ... + 211542223.

It is an arithmetic number, because the mean of its divisors is an integer number (897470130664).

Almost surely, 2^{12551366407573} is an apocalyptic number.

It is an amenable number.

12551366407573 is a deficient number, since it is larger than the sum of its proper divisors (1808155683051).

12551366407573 is an equidigital number, since it uses as much as digits as its factorization.

12551366407573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90652.

The product of its (nonzero) digits is 15876000, while the sum is 55.

The spelling of 12551366407573 in words is "twelve trillion, five hundred fifty-one billion, three hundred sixty-six million, four hundred seven thousand, five hundred seventy-three".