1983453066 has 96 divisors (see below), whose sum is σ = 5057769600. Its totient is φ = 561488256.

The previous prime is 1983453037. The next prime is 1983453071. The reversal of 1983453066 is 6603543891.

1983453066 is a `hidden beast` number, since 198 + 3 + 453 + 0 + 6 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 696241 + ... + 699083.

It is an arithmetic number, because the mean of its divisors is an integer number (52685100).

Almost surely, 2^1983453066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1983453066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2528884800).

1983453066 is an abundant number, since it is smaller than the sum of its proper divisors (3074316534).

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

1983453066 is a wasteful number, since it uses less digits than its factorization.

1983453066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2985 (or 2968 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 1983453066 is about 44535.9749640670. The cubic root of 1983453066 is about 1256.4367847610.

It can be divided in two parts, 19834 and 53066, that added together give a square (72900 = 270²).

The spelling of 1983453066 in words is "one billion, nine hundred eighty-three million, four hundred fifty-three thousand, sixty-six".