155252106673 has 2 divisors, whose sum is σ = 155252106674. Its totient is φ = 155252106672.

The previous prime is 155252106661. The next prime is 155252106719. The reversal of 155252106673 is 376601252551.

155252106673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127671865344 + 27580241329 = 357312^2 + 166073^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155252106673 is a prime.

It is a super-2 number, since 2×155252106673² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (155252706673) by changing a digit.

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 as a sum of consecutive naturals, namely, 77626053336 + 77626053337.

It is an arithmetic number, because the mean of its divisors is an integer number (77626053337).

Almost surely, 2^155252106673 is an apocalyptic number.

It is an amenable number.

155252106673 is a deficient number, since it is larger than the sum of its proper divisors (1).

155252106673 is an equidigital number, since it uses as much as digits as its factorization.

155252106673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378000, while the sum is 43.

The spelling of 155252106673 in words is "one hundred fifty-five billion, two hundred fifty-two million, one hundred six thousand, six hundred seventy-three".