1166455252 has 18 divisors (see below), whose sum is σ = 2076506138. Its totient is φ = 573335568.

The previous prime is 1166455223. The next prime is 1166455253. The reversal of 1166455252 is 2525546611.

It can be written as a sum of positive squares in only one way, i.e., 955799056 + 210656196 = 30916^2 + 14514^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166455253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27963 + ... + 55810.

Almost surely, 2^1166455252 is an apocalyptic number.

It is an amenable number.

1166455252 is a deficient number, since it is larger than the sum of its proper divisors (910050886).

1166455252 is an equidigital number, since it uses as much as digits as its factorization.

1166455252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83895 (or 83834 counting only the distinct ones).

The product of its digits is 72000, while the sum is 37.

The square root of 1166455252 is about 34153.4076191527. The cubic root of 1166455252 is about 1052.6630066699.

The spelling of 1166455252 in words is "one billion, one hundred sixty-six million, four hundred fifty-five thousand, two hundred fifty-two".