1066983613 has 4 divisors (see below), whose sum is σ = 1089685440. Its totient is φ = 1044281788.

The previous prime is 1066983587. The next prime is 1066983623. The reversal of 1066983613 is 3163896601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1066983613 - 2⁵ = 1066983581 is a prime.

It is a super-2 number, since 2×1066983613² = 2276908060821067538, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1066983613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066983623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11350843 + ... + 11350936.

It is an arithmetic number, because the mean of its divisors is an integer number (272421360).

Almost surely, 2^1066983613 is an apocalyptic number.

It is an amenable number.

1066983613 is a deficient number, since it is larger than the sum of its proper divisors (22701827).

1066983613 is an equidigital number, since it uses as much as digits as its factorization.

1066983613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22701826.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 1066983613 is about 32664.7151066713. The cubic root of 1066983613 is about 1021.8470994050.

The spelling of 1066983613 in words is "one billion, sixty-six million, nine hundred eighty-three thousand, six hundred thirteen".