16916478406 has 4 divisors (see below), whose sum is σ = 25374717612. Its totient is φ = 8458239202.

The previous prime is 16916478401. The next prime is 16916478421. The reversal of 16916478406 is 60487461961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60487461961 = 1039 ⋅58216999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16916478401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4229119600 + ... + 4229119603.

It is an arithmetic number, because the mean of its divisors is an integer number (6343679403).

Almost surely, 2^16916478406 is an apocalyptic number.

16916478406 is a deficient number, since it is larger than the sum of its proper divisors (8458239206).

16916478406 is an equidigital number, since it uses as much as digits as its factorization.

16916478406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8458239205.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 16916478406 in words is "sixteen billion, nine hundred sixteen million, four hundred seventy-eight thousand, four hundred six".