565503999372 has 144 divisors (see below), whose sum is σ = 1621670319360. Its totient is φ = 164719142784.

The previous prime is 565503999337. The next prime is 565503999409. The reversal of 565503999372 is 273999305565.

565503999372 is a `hidden beast` number, since 5 + 6 + 5 + 503 + 9 + 99 + 37 + 2 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12132103 + ... + 12178625.

It is an arithmetic number, because the mean of its divisors is an integer number (11261599440).

Almost surely, 2^565503999372 is an apocalyptic number.

565503999372 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 565503999372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (810835159680).

565503999372 is an abundant number, since it is smaller than the sum of its proper divisors (1056166319988).

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

565503999372 is a wasteful number, since it uses less digits than its factorization.

565503999372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47932 (or 47927 counting only the distinct ones).

The product of its (nonzero) digits is 68890500, while the sum is 63.

The spelling of 565503999372 in words is "five hundred sixty-five billion, five hundred three million, nine hundred ninety-nine thousand, three hundred seventy-two".