16091219080 has 16 divisors (see below), whose sum is σ = 36205243020. Its totient is φ = 6436487616.

The previous prime is 16091219077. The next prime is 16091219087. The reversal of 16091219080 is 8091219061.

It can be written as a sum of positive squares in 2 ways, for example, as 16046302276 + 44916804 = 126674^2 + 6702^2 .

It is not an unprimeable number, because it can be changed into a prime (16091219087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201140199 + ... + 201140278.

Almost surely, 2^16091219080 is an apocalyptic number.

16091219080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16091219080 is an abundant number, since it is smaller than the sum of its proper divisors (20114023940).

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

16091219080 is a wasteful number, since it uses less digits than its factorization.

16091219080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402280488 (or 402280484 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 37.

The spelling of 16091219080 in words is "sixteen billion, ninety-one million, two hundred nineteen thousand, eighty".