154104652355561 has 2 divisors, whose sum is σ = 154104652355562. Its totient is φ = 154104652355560.

The previous prime is 154104652355539. The next prime is 154104652355569. The reversal of 154104652355561 is 165553256401451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98189866446400 + 55914785909161 = 9909080^2 + 7477619^2 .

It is a cyclic number.

It is not a de Polignac number, because 154104652355561 - 2¹⁰ = 154104652354537 is a prime.

It is not a weakly prime, because it can be changed into another prime (154104652355569) 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, 77052326177780 + 77052326177781.

It is an arithmetic number, because the mean of its divisors is an integer number (77052326177781).

Almost surely, 2^{154104652355561} is an apocalyptic number.

It is an amenable number.

154104652355561 is a deficient number, since it is larger than the sum of its proper divisors (1).

154104652355561 is an equidigital number, since it uses as much as digits as its factorization.

154104652355561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800000, while the sum is 53.

The spelling of 154104652355561 in words is "one hundred fifty-four trillion, one hundred four billion, six hundred fifty-two million, three hundred fifty-five thousand, five hundred sixty-one".