1166466601 has 4 divisors (see below), whose sum is σ = 1227859600. Its totient is φ = 1105073604.

The previous prime is 1166466571. The next prime is 1166466617. The reversal of 1166466601 is 1066646611.

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 not a de Polignac number, because 1166466601 - 2²⁹ = 629595689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1166466641) 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, 30696471 + ... + 30696508.

It is an arithmetic number, because the mean of its divisors is an integer number (306964900).

Almost surely, 2^1166466601 is an apocalyptic number.

It is an amenable number.

1166466601 is a deficient number, since it is larger than the sum of its proper divisors (61392999).

1166466601 is an equidigital number, since it uses as much as digits as its factorization.

1166466601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61392998.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 1166466601 is about 34153.5737661522. The cubic root of 1166466601 is about 1052.6664206125. Note that the first 3 decimals are identical.

The spelling of 1166466601 in words is "one billion, one hundred sixty-six million, four hundred sixty-six thousand, six hundred one".