1166689035 has 16 divisors (see below), whose sum is σ = 2074114080. Its totient is φ = 622234080.

The previous prime is 1166689001. The next prime is 1166689067. The reversal of 1166689035 is 5309866611.

It is not a de Polignac number, because 1166689035 - 2¹⁶ = 1166623499 is a prime.

It is a super-2 number, since 2×1166689035² = 2722326608778462450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4320936 + ... + 4321205.

It is an arithmetic number, because the mean of its divisors is an integer number (129632130).

Almost surely, 2^1166689035 is an apocalyptic number.

1166689035 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1166689035 is a deficient number, since it is larger than the sum of its proper divisors (907425045).

1166689035 is an equidigital number, since it uses as much as digits as its factorization.

1166689035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8642155 (or 8642149 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 1166689035 is about 34156.8299905012. The cubic root of 1166689035 is about 1052.7333274920.

The spelling of 1166689035 in words is "one billion, one hundred sixty-six million, six hundred eighty-nine thousand, thirty-five".