505223566445 has 32 divisors (see below), whose sum is σ = 670663203840. Its totient is φ = 362943624960.

The previous prime is 505223566427. The next prime is 505223566447. The reversal of 505223566445 is 544665322505.

It is not a de Polignac number, because 505223566445 - 2⁸ = 505223566189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 505223566445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505223566447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18165500 + ... + 18193290.

It is an arithmetic number, because the mean of its divisors is an integer number (20958225120).

Almost surely, 2^505223566445 is an apocalyptic number.

It is an amenable number.

505223566445 is a deficient number, since it is larger than the sum of its proper divisors (165439637395).

505223566445 is a wasteful number, since it uses less digits than its factorization.

505223566445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35405.

The product of its (nonzero) digits is 4320000, while the sum is 47.

The spelling of 505223566445 in words is "five hundred five billion, two hundred twenty-three million, five hundred sixty-six thousand, four hundred forty-five".