201620041633 has 8 divisors (see below), whose sum is σ = 214002007560. Its totient is φ = 189296071680.

The previous prime is 201620041613. The next prime is 201620041639. The reversal of 201620041633 is 336140026102.

It can be written as a sum of positive squares in 4 ways, for example, as 53401201569 + 148218840064 = 231087^2 + 384992^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201620041633 - 2²⁹ = 201083170721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201620041639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14491828 + ... + 14505733.

It is an arithmetic number, because the mean of its divisors is an integer number (26750250945).

Almost surely, 2^201620041633 is an apocalyptic number.

It is an amenable number.

201620041633 is a deficient number, since it is larger than the sum of its proper divisors (12381965927).

201620041633 is a wasteful number, since it uses less digits than its factorization.

201620041633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28997987.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 201620041633 its reverse (336140026102), we get a palindrome (537760067735).

The spelling of 201620041633 in words is "two hundred one billion, six hundred twenty million, forty-one thousand, six hundred thirty-three".