13144863560 has 32 divisors (see below), whose sum is σ = 29579369400. Its totient is φ = 5257336320.

The previous prime is 13144863559. The next prime is 13144863583. The reversal of 13144863560 is 6536844131.

It can be written as a sum of positive squares in 4 ways, for example, as 11594551684 + 1550311876 = 107678^2 + 39374^2 .

It is a super-2 number, since 2×13144863560² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516740 + ... + 541580.

Almost surely, 2^13144863560 is an apocalyptic number.

13144863560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13144863560 is an abundant number, since it is smaller than the sum of its proper divisors (16434505840).

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

13144863560 is a wasteful number, since it uses less digits than its factorization.

13144863560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38081 (or 38077 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 13144863560 in words is "thirteen billion, one hundred forty-four million, eight hundred sixty-three thousand, five hundred sixty".