16779485376 has 168 divisors, whose sum is σ = 49884634800. Its totient is φ = 5386106880.

The previous prime is 16779485341. The next prime is 16779485377. The reversal of 16779485376 is 67358497761.

16779485376 is a `hidden beast` number, since 1 + 6 + 7 + 7 + 94 + 8 + 537 + 6 = 666.

It is a super-2 number, since 2×16779485376² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16779485377) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7699455 + ... + 7701633.

It is an arithmetic number, because the mean of its divisors is an integer number (296932350).

Almost surely, 2^16779485376 is an apocalyptic number.

16779485376 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 16779485376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24942317400).

16779485376 is an abundant number, since it is smaller than the sum of its proper divisors (33105149424).

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

16779485376 is a wasteful number, since it uses less digits than its factorization.

16779485376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2687 (or 2674 counting only the distinct ones).

The product of its digits is 53343360, while the sum is 63.

The spelling of 16779485376 in words is "sixteen billion, seven hundred seventy-nine million, four hundred eighty-five thousand, three hundred seventy-six".