13648651503 has 4 divisors (see below), whose sum is σ = 18198202008. Its totient is φ = 9099101000.

The previous prime is 13648651483. The next prime is 13648651529. The reversal of 13648651503 is 30515684631.

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 13648651503 - 2¹⁶ = 13648585967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13648651403) 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, 2274775248 + ... + 2274775253.

It is an arithmetic number, because the mean of its divisors is an integer number (4549550502).

Almost surely, 2^13648651503 is an apocalyptic number.

13648651503 is a deficient number, since it is larger than the sum of its proper divisors (4549550505).

13648651503 is an equidigital number, since it uses as much as digits as its factorization.

13648651503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4549550504.

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 13648651503 in words is "thirteen billion, six hundred forty-eight million, six hundred fifty-one thousand, five hundred three".