12159352980 has 54 divisors (see below), whose sum is σ = 36887858826. Its totient is φ = 3242099616.

The previous prime is 12159352979. The next prime is 12159353009. The reversal of 12159352980 is 8925395121.

12159352980 is a `hidden beast` number, since 1 + 2 + 1 + 593 + 52 + 9 + 8 + 0 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9727482384 + 2431870596 = 98628^2 + 49314^2 .

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 (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1475311 + ... + 1483529.

Almost surely, 2^12159352980 is an apocalyptic number.

12159352980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12159352980 is an abundant number, since it is smaller than the sum of its proper divisors (24728505846).

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

12159352980 is an frugal number, since it uses more digits than its factorization.

12159352980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16453 (or 8229 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

Multiplying 12159352980 by its sum of digits (45), we get a square (547170884100 = 739710²).

12159352980 divided by its sum of digits (45) gives a square (270207844 = 16438²).

The spelling of 12159352980 in words is "twelve billion, one hundred fifty-nine million, three hundred fifty-two thousand, nine hundred eighty".