1165604480 has 32 divisors (see below), whose sum is σ = 2786524740. Its totient is φ = 466241536.

The previous prime is 1165604443. The next prime is 1165604513. The reversal of 1165604480 is 844065611.

It can be written as a sum of positive squares in 2 ways, for example, as 1154368576 + 11235904 = 33976^2 + 3352^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 1165604480.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 909989 + ... + 911268.

Almost surely, 2^1165604480 is an apocalyptic number.

1165604480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1165604480 is an abundant number, since it is smaller than the sum of its proper divisors (1620920260).

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

1165604480 is an equidigital number, since it uses as much as digits as its factorization.

1165604480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821276 (or 1821264 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 1165604480 is about 34140.9501918151. The cubic root of 1165604480 is about 1052.4070191292.

The spelling of 1165604480 in words is "one billion, one hundred sixty-five million, six hundred four thousand, four hundred eighty".