1600660061 is nontrivially palindromic in base 10.
It is a de Polignac number, because none of the positive numbers 2k-1600660061 is a prime.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 1600660061.
It is a congruent number.
Almost surely, 21600660061 is an apocalyptic number.
1600660061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
1600660061 is a wasteful number, since it uses less digits than its factorization.
1600660061 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5193.
The square root of 1600660061 is about 40008.2499117370. The cubic root of 1600660061 is about 1169.7679090126.
The spelling of 1600660061 in words is "one billion, six hundred million, six hundred sixty thousand, sixty-one".