12330072555 has 16 divisors (see below), whose sum is σ = 19729553184. Its totient is φ = 6575559680.

The previous prime is 12330072551. The next prime is 12330072589. The reversal of 12330072555 is 55527003321.

It is not a de Polignac number, because 12330072555 - 2² = 12330072551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12330072551) 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, 300475 + ... + 339035.

It is an arithmetic number, because the mean of its divisors is an integer number (1233097074).

Almost surely, 2^12330072555 is an apocalyptic number.

12330072555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12330072555 is a deficient number, since it is larger than the sum of its proper divisors (7399480629).

12330072555 is a wasteful number, since it uses less digits than its factorization.

12330072555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59886.

The product of its (nonzero) digits is 31500, while the sum is 33.

Adding to 12330072555 its reverse (55527003321), we get a palindrome (67857075876).

The spelling of 12330072555 in words is "twelve billion, three hundred thirty million, seventy-two thousand, five hundred fifty-five".