155512032233 has 2 divisors, whose sum is σ = 155512032234. Its totient is φ = 155512032232.

The previous prime is 155512032209. The next prime is 155512032241. The reversal of 155512032233 is 332230215551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142832596624 + 12679435609 = 377932^2 + 112603^2 .

It is a cyclic number.

It is not a de Polignac number, because 155512032233 - 2²⁴ = 155495255017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155512032233.

It is not a weakly prime, because it can be changed into another prime (155512032293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77756016116 + 77756016117.

It is an arithmetic number, because the mean of its divisors is an integer number (77756016117).

Almost surely, 2^155512032233 is an apocalyptic number.

It is an amenable number.

155512032233 is a deficient number, since it is larger than the sum of its proper divisors (1).

155512032233 is an equidigital number, since it uses as much as digits as its factorization.

155512032233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27000, while the sum is 32.

Adding to 155512032233 its reverse (332230215551), we get a palindrome (487742247784).

The spelling of 155512032233 in words is "one hundred fifty-five billion, five hundred twelve million, thirty-two thousand, two hundred thirty-three".