67708133664 has 192 divisors, whose sum is σ = 194596577280. Its totient is φ = 20520898560.

The previous prime is 67708133627. The next prime is 67708133707. The reversal of 67708133664 is 46633180776.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 53778667 + ... + 53779925.

It is an arithmetic number, because the mean of its divisors is an integer number (1013523840).

Almost surely, 2^67708133664 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 67708133664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97298288640).

67708133664 is an abundant number, since it is smaller than the sum of its proper divisors (126888443616).

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

67708133664 is a wasteful number, since it uses less digits than its factorization.

67708133664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2383 (or 2375 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 51.

The spelling of 67708133664 in words is "sixty-seven billion, seven hundred eight million, one hundred thirty-three thousand, six hundred sixty-four".