67499678016 has 168 divisors, whose sum is σ = 202684684800. Its totient is φ = 21448627200.

The previous prime is 67499678011. The next prime is 67499678017. The reversal of 67499678016 is 61087699476.

67499678016 is a `hidden beast` number, since 6 + 7 + 499 + 67 + 80 + 1 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67499678011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1294041 + ... + 1345191.

Almost surely, 2^67499678016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67499678016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101342342400).

67499678016 is an abundant number, since it is smaller than the sum of its proper divisors (135185006784).

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

67499678016 is a wasteful number, since it uses less digits than its factorization.

67499678016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51277 (or 51264 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 63.

The spelling of 67499678016 in words is "sixty-seven billion, four hundred ninety-nine million, six hundred seventy-eight thousand, sixteen".