20535340315 has 64 divisors (see below), whose sum is σ = 31620326400. Its totient is φ = 12462944256.

The previous prime is 20535340291. The next prime is 20535340327. The reversal of 20535340315 is 51304353502.

It is not a de Polignac number, because 20535340315 - 2⁷ = 20535340187 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1542156 + ... + 1555414.

It is an arithmetic number, because the mean of its divisors is an integer number (494067600).

Almost surely, 2^20535340315 is an apocalyptic number.

20535340315 is a deficient number, since it is larger than the sum of its proper divisors (11084986085).

20535340315 is a wasteful number, since it uses less digits than its factorization.

20535340315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13444.

The product of its (nonzero) digits is 27000, while the sum is 31.

Adding to 20535340315 its reverse (51304353502), we get a palindrome (71839693817).

The spelling of 20535340315 in words is "twenty billion, five hundred thirty-five million, three hundred forty thousand, three hundred fifteen".