12002023515555 has 64 divisors (see below), whose sum is σ = 21639376686720. Its totient is φ = 6310427793408.

The previous prime is 12002023515551. The next prime is 12002023515619. The reversal of 12002023515555 is 55551532020021.

12002023515555 is a `hidden beast` number, since 1 + 2 + 0 + 0 + 202 + 351 + 55 + 55 = 666.

It is not a de Polignac number, because 12002023515555 - 2² = 12002023515551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12002023515551) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20775189 + ... + 21345081.

It is an arithmetic number, because the mean of its divisors is an integer number (338115260730).

Almost surely, 2^{12002023515555} is an apocalyptic number.

12002023515555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12002023515555 is a deficient number, since it is larger than the sum of its proper divisors (9637353171165).

12002023515555 is a wasteful number, since it uses less digits than its factorization.

12002023515555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572117 (or 572111 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

Adding to 12002023515555 its reverse (55551532020021), we get a palindrome (67553555535576).

The spelling of 12002023515555 in words is "twelve trillion, two billion, twenty-three million, five hundred fifteen thousand, five hundred fifty-five".