It is a congruent number.
It is an unprimeable number.
Almost surely, 21649976160 is an apocalyptic number.
1649976160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1649976160 is a wasteful number, since it uses less digits than its factorization.
1649976160 is an evil number, because the sum of its binary digits is even.
The square root of 1649976160 is about 40619.8985720053. The cubic root of 1649976160 is about 1181.6600593469.
The spelling of 1649976160 in words is "one billion, six hundred forty-nine million, nine hundred seventy-six thousand, one hundred sixty".