68171549416 has 16 divisors (see below), whose sum is σ = 127851647040. Its totient is φ = 34077776880.

The previous prime is 68171549399. The next prime is 68171549423. The reversal of 68171549416 is 61494517186.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 963426 + ... + 1031761.

It is an arithmetic number, because the mean of its divisors is an integer number (7990727940).

Almost surely, 2^68171549416 is an apocalyptic number.

It is an amenable number.

68171549416 is a deficient number, since it is larger than the sum of its proper divisors (59680097624).

68171549416 is a wasteful number, since it uses less digits than its factorization.

68171549416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999464 (or 1999460 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 52.

The spelling of 68171549416 in words is "sixty-eight billion, one hundred seventy-one million, five hundred forty-nine thousand, four hundred sixteen".