155153303240473 has 2 divisors, whose sum is σ = 155153303240474. Its totient is φ = 155153303240472.

The previous prime is 155153303240471. The next prime is 155153303240503. The reversal of 155153303240473 is 374042303351551.

155153303240473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87413374638144 + 67739928602329 = 9349512^2 + 8230427^2 .

It is an emirp because it is prime and its reverse (374042303351551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 155153303240473 - 2¹ = 155153303240471 is a prime.

Together with 155153303240471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (155153303240471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77576651620236 + 77576651620237.

It is an arithmetic number, because the mean of its divisors is an integer number (77576651620237).

Almost surely, 2^{155153303240473} is an apocalyptic number.

It is an amenable number.

155153303240473 is a deficient number, since it is larger than the sum of its proper divisors (1).

155153303240473 is an equidigital number, since it uses as much as digits as its factorization.

155153303240473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268000, while the sum is 46.

The spelling of 155153303240473 in words is "one hundred fifty-five trillion, one hundred fifty-three billion, three hundred three million, two hundred forty thousand, four hundred seventy-three".