201653443453 has 48 divisors (see below), whose sum is σ = 258859307520. Its totient is φ = 155325861600.

The previous prime is 201653443441. The next prime is 201653443469. The reversal of 201653443453 is 354344356102.

It is not a de Polignac number, because 201653443453 - 2¹³ = 201653435261 is a prime.

It is a super-2 number, since 2×201653443453² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201653443153) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18564738 + ... + 18575596.

It is an arithmetic number, because the mean of its divisors is an integer number (5392902240).

Almost surely, 2^201653443453 is an apocalyptic number.

It is an amenable number.

201653443453 is a deficient number, since it is larger than the sum of its proper divisors (57205864067).

201653443453 is a wasteful number, since it uses less digits than its factorization.

201653443453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11278 (or 11271 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 40.

Adding to 201653443453 its reverse (354344356102), we get a palindrome (555997799555).

The spelling of 201653443453 in words is "two hundred one billion, six hundred fifty-three million, four hundred forty-three thousand, four hundred fifty-three".