16494415173 has 12 divisors (see below), whose sum is σ = 24646827660. Its totient is φ = 10617094656.

The previous prime is 16494415127. The next prime is 16494415207. The reversal of 16494415173 is 37151449461.

16494415173 is a `hidden beast` number, since 1 + 6 + 4 + 94 + 41 + 517 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8019739809 + 8474675364 = 89553^2 + 92058^2 .

It is not a de Polignac number, because 16494415173 - 2²⁹ = 15957544261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16494410173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31598236 + ... + 31598757.

It is an arithmetic number, because the mean of its divisors is an integer number (2053902305).

Almost surely, 2^16494415173 is an apocalyptic number.

It is an amenable number.

16494415173 is a deficient number, since it is larger than the sum of its proper divisors (8152412487).

16494415173 is a wasteful number, since it uses less digits than its factorization.

16494415173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63197028 (or 63197025 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The spelling of 16494415173 in words is "sixteen billion, four hundred ninety-four million, four hundred fifteen thousand, one hundred seventy-three".