1166439952 has 20 divisors (see below), whose sum is σ = 2268387180. Its totient is φ = 581049728.

The previous prime is 1166439947. The next prime is 1166439991. The reversal of 1166439952 is 2599346611.

It can be written as a sum of positive squares in 2 ways, for example, as 211877136 + 954562816 = 14556^2 + 30896^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131203 + ... + 139810.

It is an arithmetic number, because the mean of its divisors is an integer number (113419359).

Almost surely, 2^1166439952 is an apocalyptic number.

It is an amenable number.

1166439952 is a deficient number, since it is larger than the sum of its proper divisors (1101947228).

1166439952 is a wasteful number, since it uses less digits than its factorization.

1166439952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271290 (or 271284 counting only the distinct ones).

The product of its digits is 349920, while the sum is 46.

The square root of 1166439952 is about 34153.1836290557. The cubic root of 1166439952 is about 1052.6584041746.

The spelling of 1166439952 in words is "one billion, one hundred sixty-six million, four hundred thirty-nine thousand, nine hundred fifty-two".