1164111506 has 4 divisors (see below), whose sum is σ = 1746167262. Its totient is φ = 582055752.

The previous prime is 1164111503. The next prime is 1164111539. The reversal of 1164111506 is 6051114611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6051114611 = 107 ⋅56552473.

It can be written as a sum of positive squares in only one way, i.e., 801399481 + 362712025 = 28309^2 + 19045^2 .

It is not an unprimeable number, because it can be changed into a prime (1164111503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 291027875 + ... + 291027878.

Almost surely, 2^1164111506 is an apocalyptic number.

1164111506 is a deficient number, since it is larger than the sum of its proper divisors (582055756).

1164111506 is an equidigital number, since it uses as much as digits as its factorization.

1164111506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582055755.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 1164111506 is about 34119.0783287005. The cubic root of 1164111506 is about 1051.9574991143.

The spelling of 1164111506 in words is "one billion, one hundred sixty-four million, one hundred eleven thousand, five hundred six".