605565144431 has 4 divisors (see below), whose sum is σ = 652147078632. Its totient is φ = 558983210232.

The previous prime is 605565144421. The next prime is 605565144487. The reversal of 605565144431 is 134441565506.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134441565506 = 2 ⋅67220782753.

It is a cyclic number.

It is not a de Polignac number, because 605565144431 - 2⁶ = 605565144367 is a prime.

It is a super-2 number, since 2×605565144431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605565144421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23290967081 + ... + 23290967106.

It is an arithmetic number, because the mean of its divisors is an integer number (163036769658).

Almost surely, 2^605565144431 is an apocalyptic number.

605565144431 is a deficient number, since it is larger than the sum of its proper divisors (46581934201).

605565144431 is a wasteful number, since it uses less digits than its factorization.

605565144431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46581934200.

The product of its (nonzero) digits is 864000, while the sum is 44.

The spelling of 605565144431 in words is "six hundred five billion, five hundred sixty-five million, one hundred forty-four thousand, four hundred thirty-one".