15870160000 has 80 divisors (see below), whose sum is σ = 39507970590. Its totient is φ = 6348032000.

The previous prime is 15870159971. The next prime is 15870160121. The reversal of 15870160000 is 6107851.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 1348945984 + 14521214016 = 36728^2 + 120504^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 19189 + ... + 179188.

Almost surely, 2^15870160000 is an apocalyptic number.

15870160000 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 15870160000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19753985295).

15870160000 is an abundant number, since it is smaller than the sum of its proper divisors (23637810590).

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

15870160000 is an frugal number, since it uses more digits than its factorization.

15870160000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198411 (or 198384 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 28.

Adding to 15870160000 its reverse (6107851), we get a palindrome (15876267851).

The spelling of 15870160000 in words is "fifteen billion, eight hundred seventy million, one hundred sixty thousand".