1166167919 has 16 divisors (see below), whose sum is σ = 1409774592. Its totient is φ = 943005888.

The previous prime is 1166167913. The next prime is 1166167931. The reversal of 1166167919 is 9197616611.

It is not a de Polignac number, because 1166167919 - 2⁴ = 1166167903 is a prime.

It is a super-2 number, since 2×1166167919² = 2719895230609581122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166167913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37859 + ... + 61364.

It is an arithmetic number, because the mean of its divisors is an integer number (88110912).

Almost surely, 2^1166167919 is an apocalyptic number.

1166167919 is a deficient number, since it is larger than the sum of its proper divisors (243606673).

1166167919 is an equidigital number, since it uses as much as digits as its factorization.

1166167919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99326.

The product of its digits is 122472, while the sum is 47.

The square root of 1166167919 is about 34149.2008544856. The cubic root of 1166167919 is about 1052.5765653890.

The spelling of 1166167919 in words is "one billion, one hundred sixty-six million, one hundred sixty-seven thousand, nine hundred nineteen".