16776874983440 has 160 divisors (see below), whose sum is σ = 45845737934976. Its totient is φ = 5628912353280.

The previous prime is 16776874983409. The next prime is 16776874983481. The reversal of 16776874983440 is 4438947867761.

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, 25680527 + ... + 26325713.

Almost surely, 2^{16776874983440} is an apocalyptic number.

16776874983440 is a gapful number since it is divisible by the number (10) 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 16776874983440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22922868967488).

16776874983440 is an abundant number, since it is smaller than the sum of its proper divisors (29068862951536).

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

16776874983440 is a wasteful number, since it uses less digits than its factorization.

16776874983440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647497 (or 647491 counting only the distinct ones).

The product of its (nonzero) digits is 1365590016, while the sum is 74.

The spelling of 16776874983440 in words is "sixteen trillion, seven hundred seventy-six billion, eight hundred seventy-four million, nine hundred eighty-three thousand, four hundred forty".