505226661356 has 12 divisors (see below), whose sum is σ = 888589606800. Its totient is φ = 251343916560.

The previous prime is 505226661287. The next prime is 505226661367. The reversal of 505226661356 is 653166622505.

It is a self number, because there is not a number n which added to its sum of digits gives 505226661356.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317352635 + ... + 317354226.

It is an arithmetic number, because the mean of its divisors is an integer number (74049133900).

Almost surely, 2^505226661356 is an apocalyptic number.

It is an amenable number.

505226661356 is a deficient number, since it is larger than the sum of its proper divisors (383362945444).

505226661356 is a wasteful number, since it uses less digits than its factorization.

505226661356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634707064 (or 634707062 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 47.

The spelling of 505226661356 in words is "five hundred five billion, two hundred twenty-six million, six hundred sixty-one thousand, three hundred fifty-six".