16786538496 has 600 divisors, whose sum is σ = 62168173760. Its totient is φ = 4395368448.

The previous prime is 16786538453. The next prime is 16786538521. The reversal of 16786538496 is 69483568761.

16786538496 is a `hidden beast` number, since 1 + 6 + 7 + 8 + 6 + 538 + 4 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 120766395 + ... + 120766533.

Almost surely, 2^16786538496 is an apocalyptic number.

16786538496 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 16786538496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31084086880).

16786538496 is an abundant number, since it is smaller than the sum of its proper divisors (45381635264).

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

16786538496 is an equidigital number, since it uses as much as digits as its factorization.

16786538496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 164 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 63.

The spelling of 16786538496 in words is "sixteen billion, seven hundred eighty-six million, five hundred thirty-eight thousand, four hundred ninety-six".