201471001632 has 144 divisors (see below), whose sum is σ = 615919973760. Its totient is φ = 62268673536.

The previous prime is 201471001517. The next prime is 201471001637. The reversal of 201471001632 is 236100174102.

201471001632 is a `hidden beast` number, since 2 + 0 + 14 + 7 + 10 + 0 + 1 + 632 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 201471001596 and 201471001605.

It is not an unprimeable number, because it can be changed into a prime (201471001637) 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, 134503 + ... + 648870.

It is an arithmetic number, because the mean of its divisors is an integer number (4277222040).

Almost surely, 2^201471001632 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 201471001632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307959986880).

201471001632 is an abundant number, since it is smaller than the sum of its proper divisors (414448972128).

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

201471001632 is a wasteful number, since it uses less digits than its factorization.

201471001632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783455 (or 783444 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

Adding to 201471001632 its reverse (236100174102), we get a palindrome (437571175734).

The spelling of 201471001632 in words is "two hundred one billion, four hundred seventy-one million, one thousand, six hundred thirty-two".