155426121624647 has 2 divisors, whose sum is σ = 155426121624648. Its totient is φ = 155426121624646.

The previous prime is 155426121624539. The next prime is 155426121624661. The reversal of 155426121624647 is 746426121624551.

It is a strong prime.

It is an emirp because it is prime and its reverse (746426121624551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 155426121624647 - 2⁸ = 155426121624391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155426121624592 and 155426121624601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155426121624247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77713060812323 + 77713060812324.

It is an arithmetic number, because the mean of its divisors is an integer number (77713060812324).

Almost surely, 2^{155426121624647} is an apocalyptic number.

155426121624647 is a deficient number, since it is larger than the sum of its proper divisors (1).

155426121624647 is an equidigital number, since it uses as much as digits as its factorization.

155426121624647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19353600, while the sum is 56.

The spelling of 155426121624647 in words is "one hundred fifty-five trillion, four hundred twenty-six billion, one hundred twenty-one million, six hundred twenty-four thousand, six hundred forty-seven".