13545043320 has 64 divisors (see below), whose sum is σ = 40994773920. Its totient is φ = 3580043264.

The previous prime is 13545043313. The next prime is 13545043327. The reversal of 13545043320 is 2334054531.

It is an interprime number because it is at equal distance from previous prime (13545043313) and next prime (13545043327).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13545043327) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 485889 + ... + 513008.

Almost surely, 2^13545043320 is an apocalyptic number.

13545043320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13545043320 is an abundant number, since it is smaller than the sum of its proper divisors (27449730600).

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

13545043320 is a wasteful number, since it uses less digits than its factorization.

13545043320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999024 (or 999020 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 13545043320 its reverse (2334054531), we get a palindrome (15879097851).

The spelling of 13545043320 in words is "thirteen billion, five hundred forty-five million, forty-three thousand, three hundred twenty".