It is an unprimeable number.
Almost surely, 21155990576 is an apocalyptic number.
1155990576 is a gapful number since it is divisible by the number (16) 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 1155990576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1679892480).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1155990576 is a wasteful number, since it uses less digits than its factorization.
1155990576 is an odious number, because the sum of its binary digits is odd.
The square root of 1155990576 is about 33999.8614114823. The cubic root of 1155990576 is about 1049.5056103384.
The spelling of 1155990576 in words is "one billion, one hundred fifty-five million, nine hundred ninety thousand, five hundred seventy-six".