505603364634 has 32 divisors (see below), whose sum is σ = 1123887522240. Its totient is φ = 168485781456.

The previous prime is 505603364633. The next prime is 505603364653. The reversal of 505603364634 is 436463306505.

505603364634 is a `hidden beast` number, since 5 + 0 + 5 + 6 + 0 + 3 + 3 + 6 + 4 + 634 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 505603364634.

It is not an unprimeable number, because it can be changed into a prime (505603364633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1163089 + ... + 1537524.

It is an arithmetic number, because the mean of its divisors is an integer number (35121485070).

Almost surely, 2^505603364634 is an apocalyptic number.

505603364634 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

505603364634 is an abundant number, since it is smaller than the sum of its proper divisors (618284157606).

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

505603364634 is a wasteful number, since it uses less digits than its factorization.

505603364634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2704091 (or 2704085 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 45.

The spelling of 505603364634 in words is "five hundred five billion, six hundred three million, three hundred sixty-four thousand, six hundred thirty-four".