16704478466 has 8 divisors (see below), whose sum is σ = 26984157564. Its totient is φ = 7709759280.

The previous prime is 16704478451. The next prime is 16704478489. The reversal of 16704478466 is 66487440761.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15694827841 + 1009650625 = 125279^2 + 31775^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321239945 + ... + 321239996.

Almost surely, 2^16704478466 is an apocalyptic number.

16704478466 is a deficient number, since it is larger than the sum of its proper divisors (10279679098).

16704478466 is a wasteful number, since it uses less digits than its factorization.

16704478466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642479956.

The product of its (nonzero) digits is 5419008, while the sum is 53.

The spelling of 16704478466 in words is "sixteen billion, seven hundred four million, four hundred seventy-eight thousand, four hundred sixty-six".