16698851840 has 480 divisors, whose sum is σ = 47648950272. Its totient is φ = 5595955200.

The previous prime is 16698851831. The next prime is 16698851843. The reversal of 16698851840 is 4815889661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16698851843) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 355294697 + ... + 355294743.

Almost surely, 2^16698851840 is an apocalyptic number.

16698851840 is a gapful number since it is divisible by the number (10) 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 16698851840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23824475136).

16698851840 is an abundant number, since it is smaller than the sum of its proper divisors (30950098432).

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

16698851840 is a wasteful number, since it uses less digits than its factorization.

16698851840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 56.

The spelling of 16698851840 in words is "sixteen billion, six hundred ninety-eight million, eight hundred fifty-one thousand, eight hundred forty".