16206709680 has 240 divisors, whose sum is σ = 65477118720. Its totient is φ = 3509402112.

The previous prime is 16206709679. The next prime is 16206709691. The reversal of 16206709680 is 8690760261.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11139 + ... + 180381.

It is an arithmetic number, because the mean of its divisors is an integer number (272821328).

Almost surely, 2^16206709680 is an apocalyptic number.

16206709680 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 16206709680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32738559360).

16206709680 is an abundant number, since it is smaller than the sum of its proper divisors (49270409040).

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

16206709680 is a wasteful number, since it uses less digits than its factorization.

16206709680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169288 (or 169279 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 16206709680 in words is "sixteen billion, two hundred six million, seven hundred nine thousand, six hundred eighty".