111611166551036 has 12 divisors (see below), whose sum is σ = 195333387139128. Its totient is φ = 55801627368432.

The previous prime is 111611166550991. The next prime is 111611166551057. The reversal of 111611166551036 is 630155661116111.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 988913291 + ... + 989026146.

It is an arithmetic number, because the mean of its divisors is an integer number (16277782261594).

Almost surely, 2^{111611166551036} is an apocalyptic number.

It is an amenable number.

111611166551036 is a deficient number, since it is larger than the sum of its proper divisors (83722220588092).

111611166551036 is a wasteful number, since it uses less digits than its factorization.

111611166551036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977953548 (or 1977953546 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 44.

The spelling of 111611166551036 in words is "one hundred eleven trillion, six hundred eleven billion, one hundred sixty-six million, five hundred fifty-one thousand, thirty-six".