2001532635324 has 144 divisors (see below), whose sum is σ = 5138268670080. Its totient is φ = 656842592640.

The previous prime is 2001532635317. The next prime is 2001532635337. The reversal of 2001532635324 is 4235362351002.

2001532635324 is a `hidden beast` number, since 2 + 0 + 0 + 1 + 5 + 326 + 3 + 5 + 324 = 666.

It is a super-2 number, since 2×2001532635324² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1964212087 + ... + 1964213105.

It is an arithmetic number, because the mean of its divisors is an integer number (35682421320).

Almost surely, 2^{2001532635324} 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 2001532635324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2569134335040).

2001532635324 is an abundant number, since it is smaller than the sum of its proper divisors (3136736034756).

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

2001532635324 is a wasteful number, since it uses less digits than its factorization.

2001532635324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2760 (or 2755 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 2001532635324 its reverse (4235362351002), we get a palindrome (6236894986326).

The spelling of 2001532635324 in words is "two trillion, one billion, five hundred thirty-two million, six hundred thirty-five thousand, three hundred twenty-four".