155213072273 has 16 divisors (see below), whose sum is σ = 189509406720. Its totient is φ = 124156516176.

The previous prime is 155213072141. The next prime is 155213072293. The reversal of 155213072273 is 372270312551.

It is a de Polignac number, because none of the positive numbers 2^k-155213072273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155213072293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8700161 + ... + 8717982.

It is an arithmetic number, because the mean of its divisors is an integer number (11844337920).

Almost surely, 2^155213072273 is an apocalyptic number.

It is an amenable number.

155213072273 is a deficient number, since it is larger than the sum of its proper divisors (34296334447).

155213072273 is a wasteful number, since it uses less digits than its factorization.

155213072273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17418236.

The product of its (nonzero) digits is 88200, while the sum is 38.

The spelling of 155213072273 in words is "one hundred fifty-five billion, two hundred thirteen million, seventy-two thousand, two hundred seventy-three".