155605060001 has 2 divisors, whose sum is σ = 155605060002. Its totient is φ = 155605060000.

The previous prime is 155605059989. The next prime is 155605060021. The reversal of 155605060001 is 100060506551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153134472976 + 2470587025 = 391324^2 + 49705^2 .

It is a cyclic number.

It is not a de Polignac number, because 155605060001 - 2²⁶ = 155537951137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (155605060021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77802530000 + 77802530001.

It is an arithmetic number, because the mean of its divisors is an integer number (77802530001).

Almost surely, 2^155605060001 is an apocalyptic number.

It is an amenable number.

155605060001 is a deficient number, since it is larger than the sum of its proper divisors (1).

155605060001 is an equidigital number, since it uses as much as digits as its factorization.

155605060001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4500, while the sum is 29.

Adding to 155605060001 its reverse (100060506551), we get a palindrome (255665566552).

The spelling of 155605060001 in words is "one hundred fifty-five billion, six hundred five million, sixty thousand, one".