123216363615 has 16 divisors (see below), whose sum is σ = 197174630016. Its totient is φ = 65705911200.

The previous prime is 123216363587. The next prime is 123216363619. The reversal of 123216363615 is 516363612321.

It is not a de Polignac number, because 123216363615 - 2⁶ = 123216363551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123216363619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 484621 + ... + 693750.

It is an arithmetic number, because the mean of its divisors is an integer number (12323414376).

Almost surely, 2^123216363615 is an apocalyptic number.

123216363615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123216363615 is a deficient number, since it is larger than the sum of its proper divisors (73958266401).

123216363615 is a wasteful number, since it uses less digits than its factorization.

123216363615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185350.

The product of its digits is 116640, while the sum is 39.

Adding to 123216363615 its reverse (516363612321), we get a palindrome (639579975936).

The spelling of 123216363615 in words is "one hundred twenty-three billion, two hundred sixteen million, three hundred sixty-three thousand, six hundred fifteen".