111285148671556 has 24 divisors (see below), whose sum is σ = 199320648246720. Its totient is φ = 54336945163872.

The previous prime is 111285148671539. The next prime is 111285148671581. The reversal of 111285148671556 is 655176841582111.

It is a super-2 number, since 2×111285148671556² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111285148671494 and 111285148671503.

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 7 ways as a sum of consecutive naturals, for example, 68334631 + ... + 69944206.

It is an arithmetic number, because the mean of its divisors is an integer number (8305027010280).

Almost surely, 2^{111285148671556} is an apocalyptic number.

It is an amenable number.

111285148671556 is a deficient number, since it is larger than the sum of its proper divisors (88035499575164).

111285148671556 is a wasteful number, since it uses less digits than its factorization.

111285148671556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138283563 (or 138283561 counting only the distinct ones).

The product of its digits is 16128000, while the sum is 61.

The spelling of 111285148671556 in words is "one hundred eleven trillion, two hundred eighty-five billion, one hundred forty-eight million, six hundred seventy-one thousand, five hundred fifty-six".