111655666648 has 16 divisors (see below), whose sum is σ = 210406410000. Its totient is φ = 55547290656.

The previous prime is 111655666637. The next prime is 111655666657. The reversal of 111655666648 is 846666556111.

It is a happy number.

It is a super-3 number, since 3×111655666648³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35066143 + ... + 35069326.

It is an arithmetic number, because the mean of its divisors is an integer number (13150400625).

Almost surely, 2^111655666648 is an apocalyptic number.

It is an amenable number.

111655666648 is a deficient number, since it is larger than the sum of its proper divisors (98750743352).

111655666648 is a wasteful number, since it uses less digits than its factorization.

111655666648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70135674 (or 70135670 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 55.

The spelling of 111655666648 in words is "one hundred eleven billion, six hundred fifty-five million, six hundred sixty-six thousand, six hundred forty-eight".