12247916903557 has 4 divisors (see below), whose sum is σ = 12259705082560. Its totient is φ = 12236128724556.

The previous prime is 12247916903507. The next prime is 12247916903591. The reversal of 12247916903557 is 75530961974221.

12247916903557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12247916903557 is a prime.

It is a super-2 number, since 2×12247916903557² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12247916903495 and 12247916903504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12247916903507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5894087943 + ... + 5894090020.

It is an arithmetic number, because the mean of its divisors is an integer number (3064926270640).

Almost surely, 2^{12247916903557} is an apocalyptic number.

It is an amenable number.

12247916903557 is a deficient number, since it is larger than the sum of its proper divisors (11788179003).

12247916903557 is a wasteful number, since it uses less digits than its factorization.

12247916903557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11788179002.

The product of its (nonzero) digits is 28576800, while the sum is 61.

The spelling of 12247916903557 in words is "twelve trillion, two hundred forty-seven billion, nine hundred sixteen million, nine hundred three thousand, five hundred fifty-seven".