155532141235511 has 2 divisors, whose sum is σ = 155532141235512. Its totient is φ = 155532141235510.

The previous prime is 155532141235489. The next prime is 155532141235519. The reversal of 155532141235511 is 115532141235551.

155532141235511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 155532141235511 - 2³⁸ = 155257263328567 is a prime.

It is a super-2 number, since 2×155532141235511² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155532141235519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77766070617755 + 77766070617756.

It is an arithmetic number, because the mean of its divisors is an integer number (77766070617756).

Almost surely, 2^{155532141235511} is an apocalyptic number.

155532141235511 is a deficient number, since it is larger than the sum of its proper divisors (1).

155532141235511 is an equidigital number, since it uses as much as digits as its factorization.

155532141235511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 450000, while the sum is 44.

The spelling of 155532141235511 in words is "one hundred fifty-five trillion, five hundred thirty-two billion, one hundred forty-one million, two hundred thirty-five thousand, five hundred eleven".