4065528785136 has 240 divisors, whose sum is σ = 13131331041024. Its totient is φ = 1061172043776.

The previous prime is 4065528785117. The next prime is 4065528785137. The reversal of 4065528785136 is 6315878255604.

It is a self number, because there is not a number n which added to its sum of digits gives 4065528785136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4065528785137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5138995 + ... + 5877101.

Almost surely, 2^{4065528785136} 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 4065528785136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6565665520512).

4065528785136 is an abundant number, since it is smaller than the sum of its proper divisors (9065802255888).

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

4065528785136 is a wasteful number, since it uses less digits than its factorization.

4065528785136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738248 (or 738229 counting only the distinct ones).

The product of its (nonzero) digits is 48384000, while the sum is 60.

The spelling of 4065528785136 in words is "four trillion, sixty-five billion, five hundred twenty-eight million, seven hundred eighty-five thousand, one hundred thirty-six".