12156237215107 has 8 divisors (see below), whose sum is σ = 12439280342016. Its totient is φ = 11873209539912.

The previous prime is 12156237215033. The next prime is 12156237215131. The reversal of 12156237215107 is 70151273265121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12156237215107 - 2²³ = 12156228826499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12156237215147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2263543 + ... + 5425504.

It is an arithmetic number, because the mean of its divisors is an integer number (1554910042752).

Almost surely, 2^{12156237215107} is an apocalyptic number.

12156237215107 is a deficient number, since it is larger than the sum of its proper divisors (283043126909).

12156237215107 is an equidigital number, since it uses as much as digits as its factorization.

12156237215107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7725857.

The product of its (nonzero) digits is 176400, while the sum is 43.

The spelling of 12156237215107 in words is "twelve trillion, one hundred fifty-six billion, two hundred thirty-seven million, two hundred fifteen thousand, one hundred seven".