155551466232427 has 2 divisors, whose sum is σ = 155551466232428. Its totient is φ = 155551466232426.

The previous prime is 155551466232403. The next prime is 155551466232577. The reversal of 155551466232427 is 724232664155551.

It is a weak prime.

It is an emirp because it is prime and its reverse (724232664155551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 155551466232427 - 2³¹ = 155549318748779 is a prime.

It is not a weakly prime, because it can be changed into another prime (155551466272427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77775733116213 + 77775733116214.

It is an arithmetic number, because the mean of its divisors is an integer number (77775733116214).

Almost surely, 2^{155551466232427} is an apocalyptic number.

155551466232427 is a deficient number, since it is larger than the sum of its proper divisors (1).

155551466232427 is an equidigital number, since it uses as much as digits as its factorization.

155551466232427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480000, while the sum is 58.

The spelling of 155551466232427 in words is "one hundred fifty-five trillion, five hundred fifty-one billion, four hundred sixty-six million, two hundred thirty-two thousand, four hundred twenty-seven".