128316204166503 has 16 divisors (see below), whose sum is σ = 171425908776960. Its totient is φ = 85375320796896.

The previous prime is 128316204166457. The next prime is 128316204166559. The reversal of 128316204166503 is 305661402613821.

It is a de Polignac number, because none of the positive numbers 2^k-128316204166503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128316204165503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213429426 + ... + 214029792.

It is an arithmetic number, because the mean of its divisors is an integer number (10714119298560).

Almost surely, 2^{128316204166503} is an apocalyptic number.

128316204166503 is a deficient number, since it is larger than the sum of its proper divisors (43109704610457).

128316204166503 is a wasteful number, since it uses less digits than its factorization.

128316204166503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740846.

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 128316204166503 in words is "one hundred twenty-eight trillion, three hundred sixteen billion, two hundred four million, one hundred sixty-six thousand, five hundred three".