111145554166552 has 64 divisors (see below), whose sum is σ = 217820333001600. Its totient is φ = 53100384960000.

The previous prime is 111145554166487. The next prime is 111145554166567. The reversal of 111145554166552 is 255661455541111.

It is a self number, because there is not a number n which added to its sum of digits gives 111145554166552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49060177 + ... + 51275647.

It is an arithmetic number, because the mean of its divisors is an integer number (3403442703150).

Almost surely, 2^{111145554166552} is an apocalyptic number.

It is an amenable number.

111145554166552 is a deficient number, since it is larger than the sum of its proper divisors (106674778835048).

111145554166552 is a wasteful number, since it uses less digits than its factorization.

111145554166552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2217748 (or 2217744 counting only the distinct ones).

The product of its digits is 3600000, while the sum is 52.

The spelling of 111145554166552 in words is "one hundred eleven trillion, one hundred forty-five billion, five hundred fifty-four million, one hundred sixty-six thousand, five hundred fifty-two".