155401054532443 has 2 divisors, whose sum is σ = 155401054532444. Its totient is φ = 155401054532442.

The previous prime is 155401054532393. The next prime is 155401054532501. The reversal of 155401054532443 is 344235450104551.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 155401054532443 - 2⁴¹ = 153202031276891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155401054532393 and 155401054532402.

It is not a weakly prime, because it can be changed into another prime (155401054533443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77700527266221 + 77700527266222.

It is an arithmetic number, because the mean of its divisors is an integer number (77700527266222).

Almost surely, 2^{155401054532443} is an apocalyptic number.

155401054532443 is a deficient number, since it is larger than the sum of its proper divisors (1).

155401054532443 is an equidigital number, since it uses as much as digits as its factorization.

155401054532443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880000, while the sum is 46.

The spelling of 155401054532443 in words is "one hundred fifty-five trillion, four hundred one billion, fifty-four million, five hundred thirty-two thousand, four hundred forty-three".