16408402002 has 12 divisors (see below), whose sum is σ = 35551537710. Its totient is φ = 5469467328.

The previous prime is 16408401991. The next prime is 16408402027. The reversal of 16408402002 is 20020480461.

16408402002 is a `hidden beast` number, since 16 + 408 + 40 + 200 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8283002121 + 8125399881 = 91011^2 + 90141^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 455788927 + ... + 455788962.

Almost surely, 2^16408402002 is an apocalyptic number.

16408402002 is an abundant number, since it is smaller than the sum of its proper divisors (19143135708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16408402002 is a wasteful number, since it uses less digits than its factorization.

16408402002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911577897 (or 911577894 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 16408402002 its reverse (20020480461), we get a palindrome (36428882463).

The spelling of 16408402002 in words is "sixteen billion, four hundred eight million, four hundred two thousand, two".