12118176641520 has 240 divisors, whose sum is σ = 42013460466432. Its totient is φ = 3126989905920.

The previous prime is 12118176641507. The next prime is 12118176641539. The reversal of 12118176641520 is 2514667181121.

It is a happy number.

12118176641520 is a `hidden beast` number, since 1 + 2 + 1 + 1 + 81 + 7 + 6 + 6 + 41 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 381142744 + ... + 381174536.

Almost surely, 2^{12118176641520} is an apocalyptic number.

12118176641520 is a gapful number since it is divisible by the number (10) 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 12118176641520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21006730233216).

12118176641520 is an abundant number, since it is smaller than the sum of its proper divisors (29895283824912).

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

12118176641520 is a wasteful number, since it uses less digits than its factorization.

12118176641520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48920 (or 48911 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 12118176641520 in words is "twelve trillion, one hundred eighteen billion, one hundred seventy-six million, six hundred forty-one thousand, five hundred twenty".