1980566352 has 60 divisors (see below), whose sum is σ = 5550462580. Its totient is φ = 659280384.

The previous prime is 1980566333. The next prime is 1980566353. The reversal of 1980566352 is 2536650891.

1980566352 is a `hidden beast` number, since 1 + 9 + 8 + 0 + 5 + 6 + 635 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 720600336 + 1259966016 = 26844^2 + 35496^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1980566298 and 1980566307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980566353) 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 11 ways as a sum of consecutive naturals, for example, 99924 + ... + 118092.

Almost surely, 2^1980566352 is an apocalyptic number.

1980566352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1980566352 is an abundant number, since it is smaller than the sum of its proper divisors (3569896228).

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

1980566352 is a wasteful number, since it uses less digits than its factorization.

1980566352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18940 (or 18931 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 1980566352 is about 44503.5543749036. The cubic root of 1980566352 is about 1255.8269502075.

The spelling of 1980566352 in words is "one billion, nine hundred eighty million, five hundred sixty-six thousand, three hundred fifty-two".