1503163663213 has 4 divisors (see below), whose sum is σ = 1503680394780. Its totient is φ = 1502646931648.

The previous prime is 1503163663189. The next prime is 1503163663231. The reversal of 1503163663213 is 3123663613051.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 740009416644 + 763154246569 = 860238^2 + 873587^2 .

It is a cyclic number.

It is not a de Polignac number, because 1503163663213 - 2³³ = 1494573728621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1503163663273) 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, 258361420 + ... + 258367237.

It is an arithmetic number, because the mean of its divisors is an integer number (375920098695).

Almost surely, 2^{1503163663213} is an apocalyptic number.

It is an amenable number.

1503163663213 is a deficient number, since it is larger than the sum of its proper divisors (516731567).

1503163663213 is an equidigital number, since it uses as much as digits as its factorization.

1503163663213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516731566.

The product of its (nonzero) digits is 174960, while the sum is 40.

The spelling of 1503163663213 in words is "one trillion, five hundred three billion, one hundred sixty-three million, six hundred sixty-three thousand, two hundred thirteen".