16682251698 has 128 divisors (see below), whose sum is σ = 43554931200. Its totient is φ = 4634413056.

The previous prime is 16682251639. The next prime is 16682251699. The reversal of 16682251698 is 89615228661.

16682251698 is a `hidden beast` number, since 16 + 6 + 8 + 22 + 516 + 98 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (16682251699) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2260158 + ... + 2267526.

It is an arithmetic number, because the mean of its divisors is an integer number (340272900).

Almost surely, 2^16682251698 is an apocalyptic number.

16682251698 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16682251698, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21777465600).

16682251698 is an abundant number, since it is smaller than the sum of its proper divisors (26872679502).

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

16682251698 is a wasteful number, since it uses less digits than its factorization.

16682251698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7553 (or 7547 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The spelling of 16682251698 in words is "sixteen billion, six hundred eighty-two million, two hundred fifty-one thousand, six hundred ninety-eight".