201632387004 has 72 divisors (see below), whose sum is σ = 517698352080. Its totient is φ = 66155265792.

The previous prime is 201632387003. The next prime is 201632387023. The reversal of 201632387004 is 400783236102.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 201632387004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201632387003) 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, 3076642 + ... + 3141494.

It is an arithmetic number, because the mean of its divisors is an integer number (7190254890).

Almost surely, 2^201632387004 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 201632387004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258849176040).

201632387004 is an abundant number, since it is smaller than the sum of its proper divisors (316065965076).

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

201632387004 is a wasteful number, since it uses less digits than its factorization.

201632387004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66219 (or 66214 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 201632387004 in words is "two hundred one billion, six hundred thirty-two million, three hundred eighty-seven thousand, four".