1178669160 has 144 divisors (see below), whose sum is σ = 4069622700. Its totient is φ = 295796736.

The previous prime is 1178669057. The next prime is 1178669171. The reversal of 1178669160 is 619668711.

It can be written as a sum of positive squares in 6 ways, for example, as 762753924 + 415915236 = 27618^2 + 20394^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 98376 + ... + 109704.

Almost surely, 2^1178669160 is an apocalyptic number.

1178669160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1178669160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2034811350).

1178669160 is an abundant number, since it is smaller than the sum of its proper divisors (2890953540).

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

1178669160 is a wasteful number, since it uses less digits than its factorization.

1178669160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11380 (or 11356 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 1178669160 is about 34331.7514845951. The cubic root of 1178669160 is about 1056.3243881179.

The spelling of 1178669160 in words is "one billion, one hundred seventy-eight million, six hundred sixty-nine thousand, one hundred sixty".