201050128404 has 192 divisors, whose sum is σ = 534661532160. Its totient is φ = 65318400000.

The previous prime is 201050128393. The next prime is 201050128427. The reversal of 201050128404 is 404821050102.

201050128404 is a `hidden beast` number, since 201 + 0 + 50 + 1 + 2 + 8 + 404 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 334525704 + ... + 334526304.

It is an arithmetic number, because the mean of its divisors is an integer number (2784695480).

Almost surely, 2^201050128404 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 201050128404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267330766080).

201050128404 is an abundant number, since it is smaller than the sum of its proper divisors (333611403756).

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

201050128404 is a wasteful number, since it uses less digits than its factorization.

201050128404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119 (or 1111 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

Adding to 201050128404 its reverse (404821050102), we get a palindrome (605871178506).

The spelling of 201050128404 in words is "two hundred one billion, fifty million, one hundred twenty-eight thousand, four hundred four".