23237354516505 has 16 divisors (see below), whose sum is σ = 38086590818304. Its totient is φ = 12090981211520.

The previous prime is 23237354516491. The next prime is 23237354516507. The reversal of 23237354516505 is 50561545373232.

It is not a de Polignac number, because 23237354516505 - 2⁸ = 23237354516249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23237354516507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18892157529 + ... + 18892158758.

It is an arithmetic number, because the mean of its divisors is an integer number (2380411926144).

Almost surely, 2^{23237354516505} is an apocalyptic number.

It is an amenable number.

23237354516505 is a deficient number, since it is larger than the sum of its proper divisors (14849236301799).

23237354516505 is a wasteful number, since it uses less digits than its factorization.

23237354516505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37784316336.

The product of its (nonzero) digits is 11340000, while the sum is 51.

Adding to 23237354516505 its reverse (50561545373232), we get a palindrome (73798899889737).

The spelling of 23237354516505 in words is "twenty-three trillion, two hundred thirty-seven billion, three hundred fifty-four million, five hundred sixteen thousand, five hundred five".