16499334042 has 72 divisors (see below), whose sum is σ = 38308128768. Its totient is φ = 5322215160.

The previous prime is 16499334023. The next prime is 16499334053. The reversal of 16499334042 is 24043399461.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 449383 + ... + 484709.

It is an arithmetic number, because the mean of its divisors is an integer number (532057344).

Almost surely, 2^16499334042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16499334042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19154064384).

16499334042 is an abundant number, since it is smaller than the sum of its proper divisors (21808794726).

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

16499334042 is an equidigital number, since it uses as much as digits as its factorization.

16499334042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35406 (or 35363 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The spelling of 16499334042 in words is "sixteen billion, four hundred ninety-nine million, three hundred thirty-four thousand, forty-two".