503064663655 has 4 divisors (see below), whose sum is σ = 603677596392. Its totient is φ = 402451730920.

The previous prime is 503064663641. The next prime is 503064663679. The reversal of 503064663655 is 556366460305.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-503064663655 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 503064663599 and 503064663608.

It is a congruent number.

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, 50306466361 + ... + 50306466370.

It is an arithmetic number, because the mean of its divisors is an integer number (150919399098).

Almost surely, 2^503064663655 is an apocalyptic number.

503064663655 is a deficient number, since it is larger than the sum of its proper divisors (100612932737).

503064663655 is a wasteful number, since it uses less digits than its factorization.

503064663655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100612932736.

The product of its (nonzero) digits is 5832000, while the sum is 49.

The spelling of 503064663655 in words is "five hundred three billion, sixty-four million, six hundred sixty-three thousand, six hundred fifty-five".