591061797101 has 18 divisors (see below), whose sum is σ = 601339429098. Its totient is φ = 580902806400.

The previous prime is 591061797061. The next prime is 591061797143. The reversal of 591061797101 is 101797160195.

It can be written as a sum of positive squares in 3 ways, for example, as 110140351876 + 480921445225 = 331874^2 + 693485^2 .

It is not a de Polignac number, because 591061797101 - 2¹⁴ = 591061780717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (591061787101) 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 in 17 ways as a sum of consecutive naturals, for example, 1753892405 + ... + 1753892741.

It is an arithmetic number, because the mean of its divisors is an integer number (33407746061).

Almost surely, 2^591061797101 is an apocalyptic number.

It is an amenable number.

591061797101 is a deficient number, since it is larger than the sum of its proper divisors (10277631997).

591061797101 is an frugal number, since it uses more digits than its factorization.

591061797101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229 (or 665 counting only the distinct ones).

The product of its (nonzero) digits is 119070, while the sum is 47.

The spelling of 591061797101 in words is "five hundred ninety-one billion, sixty-one million, seven hundred ninety-seven thousand, one hundred one".