15000000080 has 40 divisors (see below), whose sum is σ = 37557695112. Its totient is φ = 5538461184.

The previous prime is 15000000077. The next prime is 15000000089. The reversal of 15000000080 is 8000000051.

15000000080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 285339664 + 14714660416 = 16892^2 + 121304^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15000000089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7210499 + ... + 7212578.

Almost surely, 2^15000000080 is an apocalyptic number.

15000000080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15000000080 is an abundant number, since it is smaller than the sum of its proper divisors (22557695032).

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

15000000080 is a wasteful number, since it uses less digits than its factorization.

15000000080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14423103 (or 14423097 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The spelling of 15000000080 in words is "fifteen billion, eighty", and thus it is an aban number and an uban number.