16263130553 has 4 divisors (see below), whose sum is σ = 16702674660. Its totient is φ = 15823586448.

The previous prime is 16263130537. The next prime is 16263130591. The reversal of 16263130553 is 35503136261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35503136261 = 19 ⋅1868586119.

It can be written as a sum of positive squares in 2 ways, for example, as 5816655289 + 10446475264 = 76267^2 + 102208^2 .

It is a cyclic number.

It is not a de Polignac number, because 16263130553 - 2⁴ = 16263130537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16263130453) 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, 219771998 + ... + 219772071.

It is an arithmetic number, because the mean of its divisors is an integer number (4175668665).

Almost surely, 2^16263130553 is an apocalyptic number.

It is an amenable number.

16263130553 is a deficient number, since it is larger than the sum of its proper divisors (439544107).

16263130553 is an equidigital number, since it uses as much as digits as its factorization.

16263130553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439544106.

The product of its (nonzero) digits is 48600, while the sum is 35.

The spelling of 16263130553 in words is "sixteen billion, two hundred sixty-three million, one hundred thirty thousand, five hundred fifty-three".