12553675668 has 36 divisors (see below), whose sum is σ = 33403056960. Its totient is φ = 3964318416.

The previous prime is 12553675657. The next prime is 12553675669. The reversal of 12553675668 is 86657635521.

It is a happy number.

12553675668 is a `hidden beast` number, since 1 + 25 + 53 + 6 + 7 + 566 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-4 number, since 4×12553675668⁴ (a number of 41 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12553675669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9175980 + ... + 9177347.

Almost surely, 2^12553675668 is an apocalyptic number.

12553675668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12553675668 is an abundant number, since it is smaller than the sum of its proper divisors (20849381292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12553675668 is a wasteful number, since it uses less digits than its factorization.

12553675668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18353356 (or 18353351 counting only the distinct ones).

The product of its digits is 9072000, while the sum is 54.

The spelling of 12553675668 in words is "twelve billion, five hundred fifty-three million, six hundred seventy-five thousand, six hundred sixty-eight".