It is a congruent number.
It is an unprimeable number.
Almost surely, 26167618640 is an apocalyptic number.
6167618640 is a gapful number since it is divisible by the number (60) 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 6167618640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11056387584).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6167618640 is a wasteful number, since it uses less digits than its factorization.
6167618640 is an odious number, because the sum of its binary digits is odd.
The square root of 6167618640 is about 78534.1877146507. The cubic root of 6167618640 is about 1833.8867136834.
The spelling of 6167618640 in words is "six billion, one hundred sixty-seven million, six hundred eighteen thousand, six hundred forty".