12155000135061 has 16 divisors (see below), whose sum is σ = 18551827289600. Its totient is φ = 6934493492208.

The previous prime is 12155000135053. The next prime is 12155000135093. The reversal of 12155000135061 is 16053100055121.

It is not a de Polignac number, because 12155000135061 - 2³ = 12155000135053 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12155000115061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 467522971 + ... + 467548968.

It is an arithmetic number, because the mean of its divisors is an integer number (1159489205600).

Almost surely, 2^{12155000135061} is an apocalyptic number.

It is an amenable number.

12155000135061 is a deficient number, since it is larger than the sum of its proper divisors (6396827154539).

12155000135061 is an equidigital number, since it uses as much as digits as its factorization.

12155000135061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935072568.

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 12155000135061 in words is "twelve trillion, one hundred fifty-five billion, one hundred thirty-five thousand, sixty-one".