54156535416617 has 2 divisors, whose sum is σ = 54156535416618. Its totient is φ = 54156535416616.

The previous prime is 54156535416601. The next prime is 54156535416647. The reversal of 54156535416617 is 71661453565145.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51933988162576 + 2222547254041 = 7206524^2 + 1490821^2 .

It is a cyclic number.

It is not a de Polignac number, because 54156535416617 - 2⁴ = 54156535416601 is a prime.

It is not a weakly prime, because it can be changed into another prime (54156535416647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27078267708308 + 27078267708309.

It is an arithmetic number, because the mean of its divisors is an integer number (27078267708309).

Almost surely, 2^{54156535416617} is an apocalyptic number.

It is an amenable number.

54156535416617 is a deficient number, since it is larger than the sum of its proper divisors (1).

54156535416617 is an equidigital number, since it uses as much as digits as its factorization.

54156535416617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360000, while the sum is 59.

The spelling of 54156535416617 in words is "fifty-four trillion, one hundred fifty-six billion, five hundred thirty-five million, four hundred sixteen thousand, six hundred seventeen".