16693781104 has 320 divisors, whose sum is σ = 45149110272. Its totient is φ = 5770828800.

The previous prime is 16693781099. The next prime is 16693781131. The reversal of 16693781104 is 40118739661.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 50434219 + ... + 50434549.

Almost surely, 2^16693781104 is an apocalyptic number.

16693781104 is a gapful number since it is divisible by the number (14) 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 16693781104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22574555136).

16693781104 is an abundant number, since it is smaller than the sum of its proper divisors (28455329168).

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

16693781104 is a wasteful number, since it uses less digits than its factorization.

16693781104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

It can be divided in two parts, 16693 and 781104, that added together give a palindrome (797797).

The spelling of 16693781104 in words is "sixteen billion, six hundred ninety-three million, seven hundred eighty-one thousand, one hundred four".