15880376080 has 20 divisors (see below), whose sum is σ = 36921874572. Its totient is φ = 6352150400.

The previous prime is 15880376069. The next prime is 15880376089. The reversal of 15880376080 is 8067308851.

It can be written as a sum of positive squares in 2 ways, for example, as 4756033296 + 11124342784 = 68964^2 + 105472^2 .

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 15880376080.

It is not an unprimeable number, because it can be changed into a prime (15880376089) 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, 99252271 + ... + 99252430.

Almost surely, 2^15880376080 is an apocalyptic number.

15880376080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15880376080 is an abundant number, since it is smaller than the sum of its proper divisors (21041498492).

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

15880376080 is a wasteful number, since it uses less digits than its factorization.

15880376080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198504714 (or 198504708 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 15880376080 in words is "fifteen billion, eight hundred eighty million, three hundred seventy-six thousand, eighty".