16691302080 has 168 divisors, whose sum is σ = 58057084800. Its totient is φ = 4400934912.

The previous prime is 16691302057. The next prime is 16691302081. The reversal of 16691302080 is 8020319661.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (16691302081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 223761 + ... + 288879.

Almost surely, 2^16691302080 is an apocalyptic number.

16691302080 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 16691302080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29028542400).

16691302080 is an abundant number, since it is smaller than the sum of its proper divisors (41365782720).

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

16691302080 is a wasteful number, since it uses less digits than its factorization.

16691302080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65231 (or 65218 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 16691302080 in words is "sixteen billion, six hundred ninety-one million, three hundred two thousand, eighty".