155778481795 has 8 divisors (see below), whose sum is σ = 187027704000. Its totient is φ = 124560434880.

The previous prime is 155778481777. The next prime is 155778481811. The reversal of 155778481795 is 597184877551.

155778481795 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 155778481795 - 2⁷ = 155778481667 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155778481795.

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, 7782826 + ... + 7802815.

It is an arithmetic number, because the mean of its divisors is an integer number (23378463000).

Almost surely, 2^155778481795 is an apocalyptic number.

155778481795 is a deficient number, since it is larger than the sum of its proper divisors (31249222205).

155778481795 is a wasteful number, since it uses less digits than its factorization.

155778481795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15587645.

The product of its digits is 98784000, while the sum is 67.

The spelling of 155778481795 in words is "one hundred fifty-five billion, seven hundred seventy-eight million, four hundred eighty-one thousand, seven hundred ninety-five".