155395825805 has 32 divisors (see below), whose sum is σ = 203939261568. Its totient is φ = 112731091200.

The previous prime is 155395825777. The next prime is 155395825843. The reversal of 155395825805 is 508528593551.

It is not a de Polignac number, because 155395825805 - 2¹² = 155395821709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66378935 + ... + 66381275.

It is an arithmetic number, because the mean of its divisors is an integer number (6373101924).

Almost surely, 2^155395825805 is an apocalyptic number.

It is an amenable number.

155395825805 is a deficient number, since it is larger than the sum of its proper divisors (48543435763).

155395825805 is a wasteful number, since it uses less digits than its factorization.

155395825805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4877.

The product of its (nonzero) digits is 10800000, while the sum is 56.

The spelling of 155395825805 in words is "one hundred fifty-five billion, three hundred ninety-five million, eight hundred twenty-five thousand, eight hundred five".