11115660013646 has 16 divisors (see below), whose sum is σ = 16993152933120. Its totient is φ = 5451969867960.

The previous prime is 11115660013571. The next prime is 11115660013651. The reversal of 11115660013646 is 64631006651111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173509160 + ... + 173573211.

It is an arithmetic number, because the mean of its divisors is an integer number (1062072058320).

Almost surely, 2^{11115660013646} is an apocalyptic number.

11115660013646 is a deficient number, since it is larger than the sum of its proper divisors (5877492919474).

11115660013646 is a wasteful number, since it uses less digits than its factorization.

11115660013646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347082679.

The product of its (nonzero) digits is 77760, while the sum is 41.

Adding to 11115660013646 its reverse (64631006651111), we get a palindrome (75746666664757).

The spelling of 11115660013646 in words is "eleven trillion, one hundred fifteen billion, six hundred sixty million, thirteen thousand, six hundred forty-six".