1155688216742 has 16 divisors (see below), whose sum is σ = 1825491988800. Its totient is φ = 547214924520.

The previous prime is 1155688216729. The next prime is 1155688216757. The reversal of 1155688216742 is 2476128865511.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5911892 + ... + 6104247.

It is an arithmetic number, because the mean of its divisors is an integer number (114093249300).

Almost surely, 2^{1155688216742} is an apocalyptic number.

1155688216742 is a deficient number, since it is larger than the sum of its proper divisors (669803772058).

1155688216742 is a wasteful number, since it uses less digits than its factorization.

1155688216742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12018691.

The product of its digits is 6451200, while the sum is 56.

The spelling of 1155688216742 in words is "one trillion, one hundred fifty-five billion, six hundred eighty-eight million, two hundred sixteen thousand, seven hundred forty-two".