155812346678 has 16 divisors (see below), whose sum is σ = 239677207440. Its totient is φ = 75927874176.

The previous prime is 155812346647. The next prime is 155812346693. The reversal of 155812346678 is 876643218551.

155812346678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 1942943 + ... + 2021546.

It is an arithmetic number, because the mean of its divisors is an integer number (14979825465).

Almost surely, 2^155812346678 is an apocalyptic number.

155812346678 is a deficient number, since it is larger than the sum of its proper divisors (83864860762).

155812346678 is a wasteful number, since it uses less digits than its factorization.

155812346678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964991.

The product of its digits is 9676800, while the sum is 56.

The spelling of 155812346678 in words is "one hundred fifty-five billion, eight hundred twelve million, three hundred forty-six thousand, six hundred seventy-eight".