16517378541 has 16 divisors (see below), whose sum is σ = 22295000000. Its totient is φ = 10876128768.

The previous prime is 16517378513. The next prime is 16517378557. The reversal of 16517378541 is 14587371561.

It is not a de Polignac number, because 16517378541 - 2⁶ = 16517378477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16517378561) 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, 88335 + ... + 202083.

It is an arithmetic number, because the mean of its divisors is an integer number (1393437500).

Almost surely, 2^16517378541 is an apocalyptic number.

It is an amenable number.

16517378541 is a deficient number, since it is larger than the sum of its proper divisors (5777621459).

16517378541 is a wasteful number, since it uses less digits than its factorization.

16517378541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114348.

The product of its digits is 705600, while the sum is 48.

The spelling of 16517378541 in words is "sixteen billion, five hundred seventeen million, three hundred seventy-eight thousand, five hundred forty-one".