1616426306503 has 8 divisors (see below), whose sum is σ = 1637923518000. Its totient is φ = 1594977242688.

The previous prime is 1616426306441. The next prime is 1616426306507. The reversal of 1616426306503 is 3056036246161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1616426306503 - 2²⁵ = 1616392752071 is a prime.

It is a super-2 number, since 2×1616426306503² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1616426306503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616426306507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11969328 + ... + 12103621.

It is an arithmetic number, because the mean of its divisors is an integer number (204740439750).

Almost surely, 2^{1616426306503} is an apocalyptic number.

1616426306503 is a deficient number, since it is larger than the sum of its proper divisors (21497211497).

1616426306503 is an equidigital number, since it uses as much as digits as its factorization.

1616426306503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24073841.

The product of its (nonzero) digits is 466560, while the sum is 43.

The spelling of 1616426306503 in words is "one trillion, six hundred sixteen billion, four hundred twenty-six million, three hundred six thousand, five hundred three".