201063620517 has 4 divisors (see below), whose sum is σ = 268084827360. Its totient is φ = 134042413676.

The previous prime is 201063620449. The next prime is 201063620519. The reversal of 201063620517 is 715026360102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201063620517 - 2¹² = 201063616421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201063620519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33510603417 + ... + 33510603422.

It is an arithmetic number, because the mean of its divisors is an integer number (67021206840).

Almost surely, 2^201063620517 is an apocalyptic number.

It is an amenable number.

201063620517 is a deficient number, since it is larger than the sum of its proper divisors (67021206843).

201063620517 is an equidigital number, since it uses as much as digits as its factorization.

201063620517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67021206842.

The product of its (nonzero) digits is 15120, while the sum is 33.

Adding to 201063620517 its reverse (715026360102), we get a palindrome (916089980619).

The spelling of 201063620517 in words is "two hundred one billion, sixty-three million, six hundred twenty thousand, five hundred seventeen".