67642116528 has 160 divisors (see below), whose sum is σ = 202764054016. Its totient is φ = 19031169024.

The previous prime is 67642116523. The next prime is 67642116551. The reversal of 67642116528 is 82561124676.

It is a super-3 number, since 3×67642116528³ (a number of 33 digits) contains 333 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (67642116523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18565875 + ... + 18569517.

Almost surely, 2^67642116528 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 67642116528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101382027008).

67642116528 is an abundant number, since it is smaller than the sum of its proper divisors (135121937488).

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

67642116528 is a wasteful number, since it uses less digits than its factorization.

67642116528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4491 (or 4485 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The spelling of 67642116528 in words is "sixty-seven billion, six hundred forty-two million, one hundred sixteen thousand, five hundred twenty-eight".