16420202305456 has 10 divisors (see below), whose sum is σ = 31814141966852. Its totient is φ = 8210101152720.

The previous prime is 16420202305439. The next prime is 16420202305489. The reversal of 16420202305456 is 65450320202461.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513131322030 + ... + 513131322061.

Almost surely, 2^{16420202305456} is an apocalyptic number.

16420202305456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16420202305456 is a deficient number, since it is larger than the sum of its proper divisors (15393939661396).

16420202305456 is a wasteful number, since it uses less digits than its factorization.

16420202305456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026262644099 (or 1026262644093 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 16420202305456 in words is "sixteen trillion, four hundred twenty billion, two hundred two million, three hundred five thousand, four hundred fifty-six".