505534236544 has 64 divisors (see below), whose sum is σ = 1080969308640. Its totient is φ = 234639507456.

The previous prime is 505534236521. The next prime is 505534236547. The reversal of 505534236544 is 445632435505.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 505534236494 and 505534236503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505534236547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1432404 + ... + 1750099.

Almost surely, 2^505534236544 is an apocalyptic number.

It is an amenable number.

505534236544 is an abundant number, since it is smaller than the sum of its proper divisors (575435072096).

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

505534236544 is a wasteful number, since it uses less digits than its factorization.

505534236544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3182607 (or 3182595 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 46.

The spelling of 505534236544 in words is "five hundred five billion, five hundred thirty-four million, two hundred thirty-six thousand, five hundred forty-four".