605506050591 has 24 divisors (see below), whose sum is σ = 874893638016. Its totient is φ = 372332731680.

The previous prime is 605506050563. The next prime is 605506050607. The reversal of 605506050591 is 195050605506.

It is not a de Polignac number, because 605506050591 - 2⁵ = 605506050559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605506050691) 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 in 23 ways as a sum of consecutive naturals, for example, 202336 + ... + 1118906.

It is an arithmetic number, because the mean of its divisors is an integer number (36453901584).

Almost surely, 2^605506050591 is an apocalyptic number.

605506050591 is a deficient number, since it is larger than the sum of its proper divisors (269387587425).

605506050591 is a wasteful number, since it uses less digits than its factorization.

605506050591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917903 (or 917890 counting only the distinct ones).

The product of its (nonzero) digits is 202500, while the sum is 42.

The spelling of 605506050591 in words is "six hundred five billion, five hundred six million, fifty thousand, five hundred ninety-one".