16891059603 has 16 divisors (see below), whose sum is σ = 25861910400. Its totient is φ = 9698215680.

The previous prime is 16891059571. The next prime is 16891059607. The reversal of 16891059603 is 30695019861.

It is not a de Polignac number, because 16891059603 - 2⁵ = 16891059571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16891059607) 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, 13469118 + ... + 13470371.

It is an arithmetic number, because the mean of its divisors is an integer number (1616369400).

Almost surely, 2^16891059603 is an apocalyptic number.

16891059603 is a deficient number, since it is larger than the sum of its proper divisors (8970850797).

16891059603 is a wasteful number, since it uses less digits than its factorization.

16891059603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26939522.

The product of its (nonzero) digits is 349920, while the sum is 48.

The spelling of 16891059603 in words is "sixteen billion, eight hundred ninety-one million, fifty-nine thousand, six hundred three".