155005325099 has 2 divisors, whose sum is σ = 155005325100. Its totient is φ = 155005325098.

The previous prime is 155005325081. The next prime is 155005325191. The reversal of 155005325099 is 990523500551.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 155005325099 - 2⁸ = 155005324843 is a prime.

It is not a weakly prime, because it can be changed into another prime (155005325029) 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 as a sum of consecutive naturals, namely, 77502662549 + 77502662550.

It is an arithmetic number, because the mean of its divisors is an integer number (77502662550).

Almost surely, 2^155005325099 is an apocalyptic number.

155005325099 is a deficient number, since it is larger than the sum of its proper divisors (1).

155005325099 is an equidigital number, since it uses as much as digits as its factorization.

155005325099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 303750, while the sum is 44.

The spelling of 155005325099 in words is "one hundred fifty-five billion, five million, three hundred twenty-five thousand, ninety-nine".