12155502541125 has 16 divisors (see below), whose sum is σ = 20226756229056. Its totient is φ = 6482934688400.

The previous prime is 12155502541111. The next prime is 12155502541129. The reversal of 12155502541125 is 52114520555121.

It is not a de Polignac number, because 12155502541125 - 2⁹ = 12155502540613 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12155502541129) 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, 16207336347 + ... + 16207337096.

It is an arithmetic number, because the mean of its divisors is an integer number (1264172264316).

Almost surely, 2^{12155502541125} is an apocalyptic number.

12155502541125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12155502541125 is a deficient number, since it is larger than the sum of its proper divisors (8071253687931).

12155502541125 is an equidigital number, since it uses as much as digits as its factorization.

12155502541125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32414673461 (or 32414673451 counting only the distinct ones).

The product of its (nonzero) digits is 100000, while the sum is 39.

The spelling of 12155502541125 in words is "twelve trillion, one hundred fifty-five billion, five hundred two million, five hundred forty-one thousand, one hundred twenty-five".