201020424444 has 36 divisors (see below), whose sum is σ = 580725671344. Its totient is φ = 57434406912.

The previous prime is 201020424343. The next prime is 201020424461. The reversal of 201020424444 is 444424020102.

201020424444 is a `hidden beast` number, since 2 + 0 + 10 + 204 + 2 + 4 + 444 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×201020424444² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 398849797 + ... + 398850300.

Almost surely, 2^201020424444 is an apocalyptic number.

It is an amenable number.

201020424444 is an abundant number, since it is smaller than the sum of its proper divisors (379705246900).

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

201020424444 is a wasteful number, since it uses less digits than its factorization.

201020424444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797700114 (or 797700109 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 201020424444 its reverse (444424020102), we get a palindrome (645444444546).

The spelling of 201020424444 in words is "two hundred one billion, twenty million, four hundred twenty-four thousand, four hundred forty-four".