16903503357053 has 4 divisors (see below), whose sum is σ = 16903997457948. Its totient is φ = 16903009256160.

The previous prime is 16903503357031. The next prime is 16903503357061. The reversal of 16903503357053 is 35075330530961.

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 7892351904889 + 9011151452164 = 2809333^2 + 3001858^2 .

It is a cyclic number.

It is not a de Polignac number, because 16903503357053 - 2¹⁶ = 16903503291517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16903503356992 and 16903503357010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16903503357023) 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, 246999128 + ... + 247067553.

It is an arithmetic number, because the mean of its divisors is an integer number (4225999364487).

Almost surely, 2^{16903503357053} is an apocalyptic number.

It is an amenable number.

16903503357053 is a deficient number, since it is larger than the sum of its proper divisors (494100895).

16903503357053 is an equidigital number, since it uses as much as digits as its factorization.

16903503357053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494100894.

The product of its (nonzero) digits is 3827250, while the sum is 50.

The spelling of 16903503357053 in words is "sixteen trillion, nine hundred three billion, five hundred three million, three hundred fifty-seven thousand, fifty-three".