16665358080 has 288 divisors, whose sum is σ = 62929036800. Its totient is φ = 3677700096.

The previous prime is 16665358069. The next prime is 16665358093. The reversal of 16665358080 is 8085356661.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 768831 + ... + 790209.

It is an arithmetic number, because the mean of its divisors is an integer number (218503600).

Almost surely, 2^16665358080 is an apocalyptic number.

16665358080 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 16665358080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31464518400).

16665358080 is an abundant number, since it is smaller than the sum of its proper divisors (46263678720).

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

16665358080 is a wasteful number, since it uses less digits than its factorization.

16665358080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21439 (or 21425 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 48.

The spelling of 16665358080 in words is "sixteen billion, six hundred sixty-five million, three hundred fifty-eight thousand, eighty".