504640655226 has 160 divisors (see below), whose sum is σ = 1157798873088. Its totient is φ = 164245086720.

The previous prime is 504640655209. The next prime is 504640655237. The reversal of 504640655226 is 622556046405.

504640655226 is a `hidden beast` number, since 5 + 0 + 4 + 64 + 0 + 65 + 522 + 6 = 666.

It is a super-2 number, since 2×504640655226² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 968599846 + ... + 968600366.

Almost surely, 2^504640655226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 504640655226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (578899436544).

504640655226 is an abundant number, since it is smaller than the sum of its proper divisors (653158217862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

504640655226 is a wasteful number, since it uses less digits than its factorization.

504640655226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218 (or 1209 counting only the distinct ones).

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

The spelling of 504640655226 in words is "five hundred four billion, six hundred forty million, six hundred fifty-five thousand, two hundred twenty-six".