16081688080 has 20 divisors (see below), whose sum is σ = 37389924972. Its totient is φ = 6432675200.

The previous prime is 16081688053. The next prime is 16081688083. The reversal of 16081688080 is 8088618061.

It can be written as a sum of positive squares in 2 ways, for example, as 9460285696 + 6621402384 = 97264^2 + 81372^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 16081688080.

It is not an unprimeable number, because it can be changed into a prime (16081688083) 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, 100510471 + ... + 100510630.

Almost surely, 2^16081688080 is an apocalyptic number.

16081688080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16081688080 is an abundant number, since it is smaller than the sum of its proper divisors (21308236892).

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

16081688080 is a wasteful number, since it uses less digits than its factorization.

16081688080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201021114 (or 201021108 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 46.

The spelling of 16081688080 in words is "sixteen billion, eighty-one million, six hundred eighty-eight thousand, eighty".