155005110011 has 2 divisors, whose sum is σ = 155005110012. Its totient is φ = 155005110010.

The previous prime is 155005109993. The next prime is 155005110031. The reversal of 155005110011 is 110011500551.

It is an a-pointer prime, because the next prime (155005110031) can be obtained adding 155005110011 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 155005110011 - 2¹⁴ = 155005093627 is a prime.

It is not a weakly prime, because it can be changed into another prime (155005110031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77502555005 + 77502555006.

It is an arithmetic number, because the mean of its divisors is an integer number (77502555006).

Almost surely, 2^155005110011 is an apocalyptic number.

155005110011 is a deficient number, since it is larger than the sum of its proper divisors (1).

155005110011 is an equidigital number, since it uses as much as digits as its factorization.

155005110011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 125, while the sum is 20.

Adding to 155005110011 its reverse (110011500551), we get a palindrome (265016610562).

The spelling of 155005110011 in words is "one hundred fifty-five billion, five million, one hundred ten thousand, eleven".