1166165707 has 4 divisors (see below), whose sum is σ = 1332760816. Its totient is φ = 999570600.

The previous prime is 1166165681. The next prime is 1166165723. The reversal of 1166165707 is 7075616611.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-1166165707 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1166165707.

It is not an unprimeable number, because it can be changed into a prime (1166165797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83297544 + ... + 83297557.

It is an arithmetic number, because the mean of its divisors is an integer number (333190204).

Almost surely, 2^1166165707 is an apocalyptic number.

1166165707 is a deficient number, since it is larger than the sum of its proper divisors (166595109).

1166165707 is an equidigital number, since it uses as much as digits as its factorization.

1166165707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166595108.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 1166165707 is about 34149.1684671823. The cubic root of 1166165707 is about 1052.5758998756.

The spelling of 1166165707 in words is "one billion, one hundred sixty-six million, one hundred sixty-five thousand, seven hundred seven".