63366420503 has 4 divisors (see below), whose sum is σ = 66121482288. Its totient is φ = 60611358720.

The previous prime is 63366420487. The next prime is 63366420569. The reversal of 63366420503 is 30502466336.

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

It is a cyclic number.

It is not a de Polignac number, because 63366420503 - 2⁴ = 63366420487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63366420203) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1377530858 + ... + 1377530903.

It is an arithmetic number, because the mean of its divisors is an integer number (16530370572).

Almost surely, 2^63366420503 is an apocalyptic number.

63366420503 is a deficient number, since it is larger than the sum of its proper divisors (2755061785).

63366420503 is a wasteful number, since it uses less digits than its factorization.

63366420503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755061784.

The product of its (nonzero) digits is 233280, while the sum is 38.

Adding to 63366420503 its reverse (30502466336), we get a palindrome (93868886839).

The spelling of 63366420503 in words is "sixty-three billion, three hundred sixty-six million, four hundred twenty thousand, five hundred three".