67198449960 has 256 divisors, whose sum is σ = 225764352000. Its totient is φ = 17778735360.

The previous prime is 67198449959. The next prime is 67198449991. The reversal of 67198449960 is 6994489176.

67198449960 is a `hidden beast` number, since 6 + 7 + 1 + 9 + 84 + 499 + 60 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 128486259 + ... + 128486781.

It is an arithmetic number, because the mean of its divisors is an integer number (881892000).

Almost surely, 2^67198449960 is an apocalyptic number.

67198449960 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 67198449960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112882176000).

67198449960 is an abundant number, since it is smaller than the sum of its proper divisors (158565902040).

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

67198449960 is a wasteful number, since it uses less digits than its factorization.

67198449960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253 (or 1243 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 63.

The spelling of 67198449960 in words is "sixty-seven billion, one hundred ninety-eight million, four hundred forty-nine thousand, nine hundred sixty".