1980166912 has 36 divisors (see below), whose sum is σ = 4080118336. Its totient is φ = 958141440.

The previous prime is 1980166907. The next prime is 1980166949. The reversal of 1980166912 is 2196610891.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116823 + ... + 132694.

Almost surely, 2^1980166912 is an apocalyptic number.

It is an amenable number.

1980166912 is an abundant number, since it is smaller than the sum of its proper divisors (2099951424).

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

1980166912 is an equidigital number, since it uses as much as digits as its factorization.

1980166912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249564 (or 249550 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 43.

The square root of 1980166912 is about 44499.0664171733. The cubic root of 1980166912 is about 1255.7425196030.

The spelling of 1980166912 in words is "one billion, nine hundred eighty million, one hundred sixty-six thousand, nine hundred twelve".