1167278445678 has 32 divisors (see below), whose sum is σ = 2340810923040. Its totient is φ = 388050791040.

The previous prime is 1167278445659. The next prime is 1167278445689. The reversal of 1167278445678 is 8765448727611.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 16326288 + ... + 16397628.

It is an arithmetic number, because the mean of its divisors is an integer number (73150341345).

Almost surely, 2^{1167278445678} is an apocalyptic number.

1167278445678 is an abundant number, since it is smaller than the sum of its proper divisors (1173532477362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1167278445678 is a wasteful number, since it uses less digits than its factorization.

1167278445678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78612.

The product of its digits is 126443520, while the sum is 66.

The spelling of 1167278445678 in words is "one trillion, one hundred sixty-seven billion, two hundred seventy-eight million, four hundred forty-five thousand, six hundred seventy-eight".