13599320940 has 72 divisors (see below), whose sum is σ = 41481825840. Its totient is φ = 3606217344.

The previous prime is 13599320921. The next prime is 13599320941. The reversal of 13599320940 is 4902399531.

13599320940 is a `hidden beast` number, since 1 + 359 + 93 + 209 + 4 + 0 = 666.

13599320940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (13599320941) 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 23 ways as a sum of consecutive naturals, for example, 178819 + ... + 243258.

It is an arithmetic number, because the mean of its divisors is an integer number (576136470).

Almost surely, 2^13599320940 is an apocalyptic number.

13599320940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13599320940 is an abundant number, since it is smaller than the sum of its proper divisors (27882504900).

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

13599320940 is a wasteful number, since it uses less digits than its factorization.

13599320940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422271 (or 422266 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The spelling of 13599320940 in words is "thirteen billion, five hundred ninety-nine million, three hundred twenty thousand, nine hundred forty".