67334603994 has 384 divisors, whose sum is σ = 193665024000. Its totient is φ = 16926890112.

The previous prime is 67334603953. The next prime is 67334604011. The reversal of 67334603994 is 49930643376.

67334603994 is a `hidden beast` number, since 67 + 3 + 3 + 460 + 39 + 94 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 67334603994.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 140573047 + ... + 140573525.

It is an arithmetic number, because the mean of its divisors is an integer number (504336000).

Almost surely, 2^67334603994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67334603994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96832512000).

67334603994 is an abundant number, since it is smaller than the sum of its proper divisors (126330420006).

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

67334603994 is a wasteful number, since it uses less digits than its factorization.

67334603994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599 (or 570 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 54.

The spelling of 67334603994 in words is "sixty-seven billion, three hundred thirty-four million, six hundred three thousand, nine hundred ninety-four".