16885354992 has 160 divisors (see below), whose sum is σ = 50858959104. Its totient is φ = 4770508800.

The previous prime is 16885354991. The next prime is 16885354999. The reversal of 16885354992 is 29945358861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16885354991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 951642 + ... + 969222.

Almost surely, 2^16885354992 is an apocalyptic number.

16885354992 is a gapful number since it is divisible by the number (12) 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 16885354992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25429479552).

16885354992 is an abundant number, since it is smaller than the sum of its proper divisors (33973604112).

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

16885354992 is a wasteful number, since it uses less digits than its factorization.

16885354992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17727 (or 17721 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 60.

The spelling of 16885354992 in words is "sixteen billion, eight hundred eighty-five million, three hundred fifty-four thousand, nine hundred ninety-two".