1980083505 has 8 divisors (see below), whose sum is σ = 3168133632. Its totient is φ = 1056044528.

The previous prime is 1980083503. The next prime is 1980083509. The reversal of 1980083505 is 5053800891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1980083505 - 2¹ = 1980083503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1980083503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66002769 + ... + 66002798.

It is an arithmetic number, because the mean of its divisors is an integer number (396016704).

Almost surely, 2^1980083505 is an apocalyptic number.

1980083505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1980083505 is a deficient number, since it is larger than the sum of its proper divisors (1188050127).

1980083505 is a wasteful number, since it uses less digits than its factorization.

1980083505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132005575.

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 1980083505 is about 44498.1292303396. The cubic root of 1980083505 is about 1255.7248882295.

The spelling of 1980083505 in words is "one billion, nine hundred eighty million, eighty-three thousand, five hundred five".