16919506360656 has 240 divisors, whose sum is σ = 49267478624000. Its totient is φ = 5621177585664.

The previous prime is 16919506360643. The next prime is 16919506360667. The reversal of 16919506360656 is 65606360591961.

16919506360656 is a `hidden beast` number, since 1 + 6 + 9 + 1 + 9 + 506 + 3 + 60 + 65 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 16919506360593 and 16919506360602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4350603960 + ... + 4350607848.

Almost surely, 2^{16919506360656} is an apocalyptic number.

16919506360656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16919506360656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24633739312000).

16919506360656 is an abundant number, since it is smaller than the sum of its proper divisors (32347972263344).

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

16919506360656 is a wasteful number, since it uses less digits than its factorization.

16919506360656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7328 (or 7310 counting only the distinct ones).

The product of its (nonzero) digits is 47239200, while the sum is 63.

The spelling of 16919506360656 in words is "sixteen trillion, nine hundred nineteen billion, five hundred six million, three hundred sixty thousand, six hundred fifty-six".