16517477223 has 12 divisors (see below), whose sum is σ = 25693853640. Its totient is φ = 10164601296.

The previous prime is 16517477213. The next prime is 16517477267. The reversal of 16517477223 is 32277471561.

16517477223 is a `hidden beast` number, since 1 + 6 + 517 + 47 + 72 + 23 = 666.

It is not a de Polignac number, because 16517477223 - 2²¹ = 16515380071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16517477213) 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, 70587393 + ... + 70587626.

It is an arithmetic number, because the mean of its divisors is an integer number (2141154470).

Almost surely, 2^16517477223 is an apocalyptic number.

16517477223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16517477223 is a deficient number, since it is larger than the sum of its proper divisors (9176376417).

16517477223 is a wasteful number, since it uses less digits than its factorization.

16517477223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141175038 (or 141175035 counting only the distinct ones).

The product of its digits is 493920, while the sum is 45.

The spelling of 16517477223 in words is "sixteen billion, five hundred seventeen million, four hundred seventy-seven thousand, two hundred twenty-three".