201320501465 has 8 divisors (see below), whose sum is σ = 241587613320. Its totient is φ = 161054393472.

The previous prime is 201320501441. The next prime is 201320501477. The reversal of 201320501465 is 564105023102.

It can be written as a sum of positive squares in 4 ways, for example, as 10638065881 + 190682435584 = 103141^2 + 436672^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 201320501465 - 2⁸ = 201320501209 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300341 + ... + 702029.

It is an arithmetic number, because the mean of its divisors is an integer number (30198451665).

Almost surely, 2^201320501465 is an apocalyptic number.

It is an amenable number.

201320501465 is a deficient number, since it is larger than the sum of its proper divisors (40267111855).

201320501465 is a wasteful number, since it uses less digits than its factorization.

201320501465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501931.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 201320501465 its reverse (564105023102), we get a palindrome (765425524567).

The spelling of 201320501465 in words is "two hundred one billion, three hundred twenty million, five hundred one thousand, four hundred sixty-five".