16406774906 has 8 divisors (see below), whose sum is σ = 24614139540. Its totient is φ = 8202061728.

The previous prime is 16406774869. The next prime is 16406774941. The reversal of 16406774906 is 60947760461.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16037942881 + 368832025 = 126641^2 + 19205^2 .

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

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 647321 + ... + 672188.

Almost surely, 2^16406774906 is an apocalyptic number.

16406774906 is a deficient number, since it is larger than the sum of its proper divisors (8207364634).

16406774906 is a wasteful number, since it uses less digits than its factorization.

16406774906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325728.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 16406774906 in words is "sixteen billion, four hundred six million, seven hundred seventy-four thousand, nine hundred six".