12181382652608 has 28 divisors (see below), whose sum is σ = 26031848987760. Its totient is φ = 5622176608512.

The previous prime is 12181382652587. The next prime is 12181382652613. The reversal of 12181382652608 is 80625628318121.

It is a happy number.

It is a super-2 number, since 2×12181382652608² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12181382652608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7320541628 + ... + 7320543291.

It is an arithmetic number, because the mean of its divisors is an integer number (929708892420).

Almost surely, 2^{12181382652608} is an apocalyptic number.

It is an amenable number.

12181382652608 is an abundant number, since it is smaller than the sum of its proper divisors (13850466335152).

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

12181382652608 is a wasteful number, since it uses less digits than its factorization.

12181382652608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14641084944 (or 14641084934 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 53.

The spelling of 12181382652608 in words is "twelve trillion, one hundred eighty-one billion, three hundred eighty-two million, six hundred fifty-two thousand, six hundred eight".