68068122197520 has 80 divisors (see below), whose sum is σ = 211106187749952. Its totient is φ = 18143326440960.

The previous prime is 68068122197477. The next prime is 68068122197573. The reversal of 68068122197520 is 2579122186086.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63315942 + ... + 64382021.

Almost surely, 2^{68068122197520} is an apocalyptic number.

68068122197520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68068122197520 is an abundant number, since it is smaller than the sum of its proper divisors (143038065552432).

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

68068122197520 is a wasteful number, since it uses less digits than its factorization.

68068122197520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127700200 (or 127700194 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 57.

The spelling of 68068122197520 in words is "sixty-eight trillion, sixty-eight billion, one hundred twenty-two million, one hundred ninety-seven thousand, five hundred twenty".