108091603611577 has 2 divisors, whose sum is σ = 108091603611578. Its totient is φ = 108091603611576.

The previous prime is 108091603611529. The next prime is 108091603611721. The reversal of 108091603611577 is 775116306190801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73179624231081 + 34911979380496 = 8554509^2 + 5908636^2 .

It is a cyclic number.

It is not a de Polignac number, because 108091603611577 - 2¹⁹ = 108091603087289 is a prime.

It is not a weakly prime, because it can be changed into another prime (108091603621577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54045801805788 + 54045801805789.

It is an arithmetic number, because the mean of its divisors is an integer number (54045801805789).

Almost surely, 2^{108091603611577} is an apocalyptic number.

It is an amenable number.

108091603611577 is a deficient number, since it is larger than the sum of its proper divisors (1).

108091603611577 is an equidigital number, since it uses as much as digits as its factorization.

108091603611577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1905120, while the sum is 55.

The spelling of 108091603611577 in words is "one hundred eight trillion, ninety-one billion, six hundred three million, six hundred eleven thousand, five hundred seventy-seven".