12161003545615 has 16 divisors (see below), whose sum is σ = 14663153389248. Its totient is φ = 9682261433856.

The previous prime is 12161003545577. The next prime is 12161003545637. The reversal of 12161003545615 is 51654530016121.

It is a cyclic number.

It is not a de Polignac number, because 12161003545615 - 2⁷ = 12161003545487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 4644042 + ... + 6774151.

It is an arithmetic number, because the mean of its divisors is an integer number (916447086828).

Almost surely, 2^{12161003545615} is an apocalyptic number.

12161003545615 is a deficient number, since it is larger than the sum of its proper divisors (2502149843633).

12161003545615 is a wasteful number, since it uses less digits than its factorization.

12161003545615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11419218.

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 12161003545615 in words is "twelve trillion, one hundred sixty-one billion, three million, five hundred forty-five thousand, six hundred fifteen".