16783493616 has 60 divisors (see below), whose sum is σ = 46979563800. Its totient is φ = 5593415040.

The previous prime is 16783493609. The next prime is 16783493659. The reversal of 16783493616 is 61639438761.

It is a happy number.

16783493616 is a `hidden beast` number, since 1 + 67 + 83 + 493 + 6 + 16 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1146310 + ... + 1160858.

It is an arithmetic number, because the mean of its divisors is an integer number (782992730).

Almost surely, 2^16783493616 is an apocalyptic number.

16783493616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16783493616 is an abundant number, since it is smaller than the sum of its proper divisors (30196070184).

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

16783493616 is a wasteful number, since it uses less digits than its factorization.

16783493616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22574 (or 22565 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The spelling of 16783493616 in words is "sixteen billion, seven hundred eighty-three million, four hundred ninety-three thousand, six hundred sixteen".