20352320432015 has 16 divisors (see below), whose sum is σ = 28692502092576. Its totient is φ = 13663096233600.

The previous prime is 20352320431981. The next prime is 20352320432047. The reversal of 20352320432015 is 51023402325302.

It is not a de Polignac number, because 20352320432015 - 2⁶ = 20352320431951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14232391196 + ... + 14232392625.

It is an arithmetic number, because the mean of its divisors is an integer number (1793281380786).

Almost surely, 2^{20352320432015} is an apocalyptic number.

20352320432015 is a deficient number, since it is larger than the sum of its proper divisors (8340181660561).

20352320432015 is a wasteful number, since it uses less digits than its factorization.

20352320432015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28464783850.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 20352320432015 its reverse (51023402325302), we get a palindrome (71375722757317).

The spelling of 20352320432015 in words is "twenty trillion, three hundred fifty-two billion, three hundred twenty million, four hundred thirty-two thousand, fifteen".