500640656445 has 96 divisors (see below), whose sum is σ = 944695664640. Its totient is φ = 254014470720.

The previous prime is 500640656423. The next prime is 500640656447. The reversal of 500640656445 is 544656046005.

500640656445 is a `hidden beast` number, since 5 + 0 + 0 + 6 + 40 + 6 + 564 + 45 = 666.

It is not a de Polignac number, because 500640656445 - 2⁶ = 500640656381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 500640656445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500640656447) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2109592 + ... + 2334878.

It is an arithmetic number, because the mean of its divisors is an integer number (9840579840).

Almost surely, 2^500640656445 is an apocalyptic number.

It is an amenable number.

500640656445 is a deficient number, since it is larger than the sum of its proper divisors (444055008195).

500640656445 is a wasteful number, since it uses less digits than its factorization.

500640656445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225397 (or 225385 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 45.

The spelling of 500640656445 in words is "five hundred billion, six hundred forty million, six hundred fifty-six thousand, four hundred forty-five".