12351655008 has 576 divisors, whose sum is σ = 46451059200. Its totient is φ = 3200601600.

The previous prime is 12351655007. The next prime is 12351655009. The reversal of 12351655008 is 80055615321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12351655007) and next prime (12351655009).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12351655003) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 29338638 + ... + 29339058.

It is an arithmetic number, because the mean of its divisors is an integer number (80644200).

Almost surely, 2^12351655008 is an apocalyptic number.

12351655008 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12351655008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23225529600).

12351655008 is an abundant number, since it is smaller than the sum of its proper divisors (34099404192).

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

12351655008 is an equidigital number, since it uses as much as digits as its factorization.

12351655008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

Adding to 12351655008 its sum of digits (36), we get a square (12351655044 = 111138²).

The spelling of 12351655008 in words is "twelve billion, three hundred fifty-one million, six hundred fifty-five thousand, eight".