1165587078 has 8 divisors (see below), whose sum is σ = 2331174168. Its totient is φ = 388529024.

The previous prime is 1165587047. The next prime is 1165587079. The reversal of 1165587078 is 8707855611.

It is a sphenic number, since it is the product of 3 distinct primes.

1165587078 is an admirable number.

It is a super-4 number, since 4×1165587078⁴ (a number of 37 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165587079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97132251 + ... + 97132262.

It is an arithmetic number, because the mean of its divisors is an integer number (291396771).

Almost surely, 2^1165587078 is an apocalyptic number.

1165587078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1165587078 is a wasteful number, since it uses less digits than its factorization.

1165587078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194264518.

The product of its (nonzero) digits is 470400, while the sum is 48.

The square root of 1165587078 is about 34140.6953356255. The cubic root of 1165587078 is about 1052.4017817672.

The spelling of 1165587078 in words is "one billion, one hundred sixty-five million, five hundred eighty-seven thousand, seventy-eight".