1168981164 has 144 divisors (see below), whose sum is σ = 3342323712. Its totient is φ = 341801856.

The previous prime is 1168981127. The next prime is 1168981169. The reversal of 1168981164 is 4611898611.

It is a happy number.

1168981164 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1168981169) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2400129 + ... + 2400615.

Almost surely, 2^1168981164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1168981164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1671161856).

1168981164 is an abundant number, since it is smaller than the sum of its proper divisors (2173342548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1168981164 is a wasteful number, since it uses less digits than its factorization.

1168981164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756 (or 751 counting only the distinct ones).

The product of its digits is 82944, while the sum is 45.

The square root of 1168981164 is about 34190.3665379592. The cubic root of 1168981164 is about 1053.4222920204.

The spelling of 1168981164 in words is "one billion, one hundred sixty-eight million, nine hundred eighty-one thousand, one hundred sixty-four".