155805273323 has 8 divisors (see below), whose sum is σ = 178127036640. Its totient is φ = 133499476800.

The previous prime is 155805273311. The next prime is 155805273373. The reversal of 155805273323 is 323372508551.

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

It is a cyclic number.

It is not a de Polignac number, because 155805273323 - 2²⁸ = 155536837867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155805273373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3970778 + ... + 4009823.

It is an arithmetic number, because the mean of its divisors is an integer number (22265879580).

Almost surely, 2^155805273323 is an apocalyptic number.

155805273323 is a deficient number, since it is larger than the sum of its proper divisors (22321763317).

155805273323 is an equidigital number, since it uses as much as digits as its factorization.

155805273323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7983397.

The product of its (nonzero) digits is 756000, while the sum is 44.

The spelling of 155805273323 in words is "one hundred fifty-five billion, eight hundred five million, two hundred seventy-three thousand, three hundred twenty-three".