16266780160 has 80 divisors (see below), whose sum is σ = 39058696512. Its totient is φ = 6497280000.

The previous prime is 16266780151. The next prime is 16266780169. The reversal of 16266780160 is 6108766261.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16266780151) and next prime (16266780169).

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16266780169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1918330 + ... + 1926790.

Almost surely, 2^16266780160 is an apocalyptic number.

16266780160 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 16266780160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19529348256).

16266780160 is an abundant number, since it is smaller than the sum of its proper divisors (22791916352).

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

16266780160 is an frugal number, since it uses more digits than its factorization.

16266780160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9235 (or 9219 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 16266780160 in words is "sixteen billion, two hundred sixty-six million, seven hundred eighty thousand, one hundred sixty".