12158552866632 has 128 divisors (see below), whose sum is σ = 31266236010240. Its totient is φ = 3937214960640.

The previous prime is 12158552866609. The next prime is 12158552866637. The reversal of 12158552866632 is 23666825585121.

It is not an unprimeable number, because it can be changed into a prime (12158552866637) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1936997478 + ... + 1937003754.

It is an arithmetic number, because the mean of its divisors is an integer number (244267468830).

Almost surely, 2^{12158552866632} is an apocalyptic number.

12158552866632 is a gapful number since it is divisible by the number (12) 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 12158552866632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15633118005120).

12158552866632 is an abundant number, since it is smaller than the sum of its proper divisors (19107683143608).

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

12158552866632 is a wasteful number, since it uses less digits than its factorization.

12158552866632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9351 (or 9347 counting only the distinct ones).

The product of its digits is 41472000, while the sum is 60.

The spelling of 12158552866632 in words is "twelve trillion, one hundred fifty-eight billion, five hundred fifty-two million, eight hundred sixty-six thousand, six hundred thirty-two".