12015111662345 has 16 divisors (see below), whose sum is σ = 15986723837760. Its totient is φ = 8595012811200.

The previous prime is 12015111662287. The next prime is 12015111662353. The reversal of 12015111662345 is 54326611151021.

It is a de Polignac number, because none of the positive numbers 2^k-12015111662345 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12015111662299 and 12015111662308.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1790624315 + ... + 1790631024.

It is an arithmetic number, because the mean of its divisors is an integer number (999170239860).

Almost surely, 2^{12015111662345} is an apocalyptic number.

It is an amenable number.

12015111662345 is a deficient number, since it is larger than the sum of its proper divisors (3971612175415).

12015111662345 is a wasteful number, since it uses less digits than its factorization.

12015111662345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3581255416.

The product of its (nonzero) digits is 43200, while the sum is 38.

The spelling of 12015111662345 in words is "twelve trillion, fifteen billion, one hundred eleven million, six hundred sixty-two thousand, three hundred forty-five".