591680551145 has 4 divisors (see below), whose sum is σ = 710016661380. Its totient is φ = 473344440912.

The previous prime is 591680551069. The next prime is 591680551169. The reversal of 591680551145 is 541155086195.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 189633249961 + 402047301184 = 435469^2 + 634072^2 .

It is a cyclic number.

It is not a de Polignac number, because 591680551145 - 2¹⁴ = 591680534761 is a prime.

It is a super-2 number, since 2×591680551145² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 591680551093 and 591680551102.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 59168055110 + ... + 59168055119.

It is an arithmetic number, because the mean of its divisors is an integer number (177504165345).

Almost surely, 2^591680551145 is an apocalyptic number.

It is an amenable number.

591680551145 is a deficient number, since it is larger than the sum of its proper divisors (118336110235).

591680551145 is a wasteful number, since it uses less digits than its factorization.

591680551145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118336110234.

The product of its (nonzero) digits is 1080000, while the sum is 50.

The spelling of 591680551145 in words is "five hundred ninety-one billion, six hundred eighty million, five hundred fifty-one thousand, one hundred forty-five".