1166084969 has 4 divisors (see below), whose sum is σ = 1332668544. Its totient is φ = 999501396.

The previous prime is 1166084957. The next prime is 1166084971. The reversal of 1166084969 is 9694806611.

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 a de Polignac number, because none of the positive numbers 2^k-1166084969 is a prime.

It is a super-2 number, since 2×1166084969² = 2719508309855461922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1166084069) 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, 83291777 + ... + 83291790.

It is an arithmetic number, because the mean of its divisors is an integer number (333167136).

Almost surely, 2^1166084969 is an apocalyptic number.

It is an amenable number.

1166084969 is a deficient number, since it is larger than the sum of its proper divisors (166583575).

1166084969 is an equidigital number, since it uses as much as digits as its factorization.

1166084969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166583574.

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 1166084969 is about 34147.9863095908. The cubic root of 1166084969 is about 1052.5516080637.

The spelling of 1166084969 in words is "one billion, one hundred sixty-six million, eighty-four thousand, nine hundred sixty-nine".