12425556343662 has 256 divisors, whose sum is σ = 35390311464960. Its totient is φ = 3137161104000.

The previous prime is 12425556343661. The next prime is 12425556343691. The reversal of 12425556343662 is 26634365552421.

12425556343662 is a `hidden beast` number, since 1 + 2 + 4 + 25 + 556 + 3 + 4 + 3 + 6 + 62 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 12425556343599 and 12425556343608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12425556343661) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 161653723 + ... + 161730569.

It is an arithmetic number, because the mean of its divisors is an integer number (138243404160).

Almost surely, 2^{12425556343662} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12425556343662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17695155732480).

12425556343662 is an abundant number, since it is smaller than the sum of its proper divisors (22964755121298).

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

12425556343662 is a wasteful number, since it uses less digits than its factorization.

12425556343662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77964 (or 77958 counting only the distinct ones).

The product of its digits is 31104000, while the sum is 54.

The spelling of 12425556343662 in words is "twelve trillion, four hundred twenty-five billion, five hundred fifty-six million, three hundred forty-three thousand, six hundred sixty-two".