23515412323355 has 16 divisors (see below), whose sum is σ = 28989009495264. Its totient is φ = 18298928920320.

The previous prime is 23515412323283. The next prime is 23515412323367. The reversal of 23515412323355 is 55332321451532.

It is not a de Polignac number, because 23515412323355 - 2⁴⁴ = 5923226278939 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16536122 + ... + 17901791.

It is an arithmetic number, because the mean of its divisors is an integer number (1811813093454).

Almost surely, 2^{23515412323355} is an apocalyptic number.

23515412323355 is a deficient number, since it is larger than the sum of its proper divisors (5473597171909).

23515412323355 is a wasteful number, since it uses less digits than its factorization.

23515412323355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34441646.

The product of its digits is 1620000, while the sum is 44.

Adding to 23515412323355 its reverse (55332321451532), we get a palindrome (78847733774887).

The spelling of 23515412323355 in words is "twenty-three trillion, five hundred fifteen billion, four hundred twelve million, three hundred twenty-three thousand, three hundred fifty-five".