67068851520 has 448 divisors, whose sum is σ = 246777394176. Its totient is φ = 15252357120.

The previous prime is 67068851491. The next prime is 67068851539. The reversal of 67068851520 is 2515886076.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 67068851520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 98197099 + ... + 98197781.

Almost surely, 2^67068851520 is an apocalyptic number.

67068851520 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67068851520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123388697088).

67068851520 is an abundant number, since it is smaller than the sum of its proper divisors (179708542656).

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

67068851520 is a wasteful number, since it uses less digits than its factorization.

67068851520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278 (or 1268 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 48.

The spelling of 67068851520 in words is "sixty-seven billion, sixty-eight million, eight hundred fifty-one thousand, five hundred twenty".