16053955503 has 4 divisors (see below), whose sum is σ = 21405274008. Its totient is φ = 10702637000.

The previous prime is 16053955481. The next prime is 16053955507. The reversal of 16053955503 is 30555935061.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30555935061 = 3 ⋅10185311687.

It is a cyclic number.

It is not a de Polignac number, because 16053955503 - 2⁶ = 16053955439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16053955507) 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, 2675659248 + ... + 2675659253.

It is an arithmetic number, because the mean of its divisors is an integer number (5351318502).

Almost surely, 2^16053955503 is an apocalyptic number.

16053955503 is a deficient number, since it is larger than the sum of its proper divisors (5351318505).

16053955503 is an equidigital number, since it uses as much as digits as its factorization.

16053955503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5351318504.

The product of its (nonzero) digits is 303750, while the sum is 42.

The spelling of 16053955503 in words is "sixteen billion, fifty-three million, nine hundred fifty-five thousand, five hundred three".