12356555879808 has 1344 divisors, whose sum is σ = 45602617057920. Its totient is φ = 3196997959680.

The previous prime is 12356555879783. The next prime is 12356555879867. The reversal of 12356555879808 is 80897855565321.

12356555879808 is a `hidden beast` number, since 1 + 2 + 3 + 5 + 65 + 558 + 7 + 9 + 8 + 0 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 71425178410 + ... + 71425178582.

Almost surely, 2^{12356555879808} is an apocalyptic number.

12356555879808 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 12356555879808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22801308528960).

12356555879808 is an abundant number, since it is smaller than the sum of its proper divisors (33246061178112).

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

12356555879808 is an frugal number, since it uses more digits than its factorization.

12356555879808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 725760000, while the sum is 72.

The spelling of 12356555879808 in words is "twelve trillion, three hundred fifty-six billion, five hundred fifty-five million, eight hundred seventy-nine thousand, eight hundred eight".