1165984080 has 80 divisors (see below), whose sum is σ = 3771722880. Its totient is φ = 297409024.

The previous prime is 1165984067. The next prime is 1165984093. The reversal of 1165984080 is 804895611.

It is an interprime number because it is at equal distance from previous prime (1165984067) and next prime (1165984093).

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100095 + ... + 111134.

It is an arithmetic number, because the mean of its divisors is an integer number (47146536).

Almost surely, 2^1165984080 is an apocalyptic number.

1165984080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1165984080 is an abundant number, since it is smaller than the sum of its proper divisors (2605738800).

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

1165984080 is a wasteful number, since it uses less digits than its factorization.

1165984080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211268 (or 211262 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 1165984080 is about 34146.5090455818. The cubic root of 1165984080 is about 1052.5212518018.

The spelling of 1165984080 in words is "one billion, one hundred sixty-five million, nine hundred eighty-four thousand, eighty".