155436410531461 has 2 divisors, whose sum is σ = 155436410531462. Its totient is φ = 155436410531460.

The previous prime is 155436410531447. The next prime is 155436410531497. The reversal of 155436410531461 is 164135014634551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154621913306436 + 814497225025 = 12434706^2 + 902495^2 .

It is a cyclic number.

It is not a de Polignac number, because 155436410531461 - 2⁹ = 155436410530949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155436440531461) 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, 77718205265730 + 77718205265731.

It is an arithmetic number, because the mean of its divisors is an integer number (77718205265731).

Almost surely, 2^{155436410531461} is an apocalyptic number.

It is an amenable number.

155436410531461 is a deficient number, since it is larger than the sum of its proper divisors (1).

155436410531461 is an equidigital number, since it uses as much as digits as its factorization.

155436410531461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592000, while the sum is 49.

The spelling of 155436410531461 in words is "one hundred fifty-five trillion, four hundred thirty-six billion, four hundred ten million, five hundred thirty-one thousand, four hundred sixty-one".