16420551433366 has 64 divisors (see below), whose sum is σ = 27700159887360. Its totient is φ = 7259424916480.

The previous prime is 16420551433339. The next prime is 16420551433379. The reversal of 16420551433366 is 66333415502461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50451171 + ... + 50775601.

It is an arithmetic number, because the mean of its divisors is an integer number (432814998240).

Almost surely, 2^{16420551433366} is an apocalyptic number.

16420551433366 is a deficient number, since it is larger than the sum of its proper divisors (11279608453994).

16420551433366 is a wasteful number, since it uses less digits than its factorization.

16420551433366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325629.

The product of its (nonzero) digits is 4665600, while the sum is 49.

The spelling of 16420551433366 in words is "sixteen trillion, four hundred twenty billion, five hundred fifty-one million, four hundred thirty-three thousand, three hundred sixty-six".