1980606016 has 21 divisors (see below), whose sum is σ = 3930971691. Its totient is φ = 990124992.

The previous prime is 1980606013. The next prime is 1980606071. The reversal of 1980606016 is 6106060891.

The square root of 1980606016 is 44504.

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

It is a super-3 number, since 3×1980606016³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1980606013) by changing a digit.

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 2 ways as a sum of consecutive naturals, for example, 353251 + ... + 358813.

Almost surely, 2^1980606016 is an apocalyptic number.

1980606016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1980606016 is the 44504-th square number.

It is an amenable number.

1980606016 is a deficient number, since it is larger than the sum of its proper divisors (1950365675).

1980606016 is an frugal number, since it uses more digits than its factorization.

1980606016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11138 (or 5565 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The cubic root of 1980606016 is about 1255.8353334641.

The spelling of 1980606016 in words is "one billion, nine hundred eighty million, six hundred six thousand, sixteen".