67061725536 has 144 divisors (see below), whose sum is σ = 191729852496. Its totient is φ = 20514244608.

The previous prime is 67061725529. The next prime is 67061725537. The reversal of 67061725536 is 63552716076.

67061725536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67061725537) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2794806 + ... + 2818698.

It is an arithmetic number, because the mean of its divisors is an integer number (1331457309).

Almost surely, 2^67061725536 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 67061725536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95864926248).

67061725536 is an abundant number, since it is smaller than the sum of its proper divisors (124668126960).

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

67061725536 is a wasteful number, since it uses less digits than its factorization.

67061725536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24105 (or 24084 counting only the distinct ones).

The product of its (nonzero) digits is 1587600, while the sum is 48.

The spelling of 67061725536 in words is "sixty-seven billion, sixty-one million, seven hundred twenty-five thousand, five hundred thirty-six".