1166583983 has 16 divisors (see below), whose sum is σ = 1244701920. Its totient is φ = 1090215936.

The previous prime is 1166583961. The next prime is 1166584057. The reversal of 1166583983 is 3893856611.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1166583983 - 2²⁴ = 1149806767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166583953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 686591 + ... + 688287.

It is an arithmetic number, because the mean of its divisors is an integer number (77793870).

Almost surely, 2^1166583983 is an apocalyptic number.

1166583983 is a deficient number, since it is larger than the sum of its proper divisors (78117937).

1166583983 is a wasteful number, since it uses less digits than its factorization.

1166583983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2186.

The product of its digits is 933120, while the sum is 50.

The square root of 1166583983 is about 34155.2921668078. The cubic root of 1166583983 is about 1052.7017295089.

The spelling of 1166583983 in words is "one billion, one hundred sixty-six million, five hundred eighty-three thousand, nine hundred eighty-three".