111660663806153 has 16 divisors (see below), whose sum is σ = 139295330239104. Its totient is φ = 86957037519360.

The previous prime is 111660663806077. The next prime is 111660663806161. The reversal of 111660663806153 is 351608366066111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111660663806153 - 2¹⁴ = 111660663789769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111660663806095 and 111660663806104.

It is not an unprimeable number, because it can be changed into a prime (111660663506153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 427134650 + ... + 427395987.

It is an arithmetic number, because the mean of its divisors is an integer number (8705958139944).

Almost surely, 2^{111660663806153} is an apocalyptic number.

It is an amenable number.

111660663806153 is a deficient number, since it is larger than the sum of its proper divisors (27634666432951).

111660663806153 is a wasteful number, since it uses less digits than its factorization.

111660663806153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854532352.

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 111660663806153 in words is "one hundred eleven trillion, six hundred sixty billion, six hundred sixty-three million, eight hundred six thousand, one hundred fifty-three".