19982084164 has 81 divisors (see below), whose sum is σ = 42620395167. Its totient is φ = 8172754128.

The previous prime is 19982084159. The next prime is 19982084183. The reversal of 19982084164 is 46148028991.

The square root of 19982084164 is 141358.

It is a perfect power (a square), and thus also a powerful number.

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 26 ways as a sum of consecutive naturals, for example, 45517057 + ... + 45517495.

Almost surely, 2^19982084164 is an apocalyptic number.

19982084164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19982084164 is the 141358-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19982084164

19982084164 is an abundant number, since it is smaller than the sum of its proper divisors (22638311003).

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

19982084164 is an equidigital number, since it uses as much as digits as its factorization.

19982084164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942 (or 471 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 52.

The spelling of 19982084164 in words is "nineteen billion, nine hundred eighty-two million, eighty-four thousand, one hundred sixty-four".