68017140240 has 160 divisors (see below), whose sum is σ = 246852700416. Its totient is φ = 15167569920.

The previous prime is 68017140223. The next prime is 68017140271. The reversal of 68017140240 is 4204171086.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 424857 + ... + 562616.

Almost surely, 2^68017140240 is an apocalyptic number.

68017140240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68017140240 is an abundant number, since it is smaller than the sum of its proper divisors (178835560176).

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

68017140240 is a wasteful number, since it uses less digits than its factorization.

68017140240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987537 (or 987531 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The spelling of 68017140240 in words is "sixty-eight billion, seventeen million, one hundred forty thousand, two hundred forty".