503356315165663 has 4 divisors (see below), whose sum is σ = 503366585906080. Its totient is φ = 503346044425248.

The previous prime is 503356315165657. The next prime is 503356315165687. The reversal of 503356315165663 is 366561513653305.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-503356315165663 is a prime.

It is a super-2 number, since 2×503356315165663² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 503356315165598 and 503356315165607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503356315265663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5135296695 + ... + 5135394712.

It is an arithmetic number, because the mean of its divisors is an integer number (125841646476520).

Almost surely, 2^{503356315165663} is an apocalyptic number.

503356315165663 is a deficient number, since it is larger than the sum of its proper divisors (10270740417).

503356315165663 is a wasteful number, since it uses less digits than its factorization.

503356315165663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10270740416.

The product of its (nonzero) digits is 65610000, while the sum is 58.

The spelling of 503356315165663 in words is "five hundred three trillion, three hundred fifty-six billion, three hundred fifteen million, one hundred sixty-five thousand, six hundred sixty-three".