2158080012 has 216 divisors, whose sum is σ = 6246309888. Its totient is φ = 627359040.

The previous prime is 2158079981. The next prime is 2158080013. The reversal of 2158080012 is 2100808512.

2158080012 is a `hidden beast` number, since 2 + 1 + 580 + 80 + 0 + 1 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (2158080013) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 16992693 + ... + 16992819.

Almost surely, 2^2158080012 is an apocalyptic number.

2158080012 is a gapful number since it is divisible by the number (22) 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 2158080012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3123154944).

2158080012 is an abundant number, since it is smaller than the sum of its proper divisors (4088229876).

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

2158080012 is a wasteful number, since it uses less digits than its factorization.

2158080012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 2158080012 is about 46455.1397802224. The cubic root of 2158080012 is about 1292.2776922621.

Adding to 2158080012 its reverse (2100808512), we get a palindrome (4258888524).

The spelling of 2158080012 in words is "two billion, one hundred fifty-eight million, eighty thousand, twelve".