13545020340 has 96 divisors (see below), whose sum is σ = 43499473920. Its totient is φ = 3495484800.

The previous prime is 13545020329. The next prime is 13545020353. The reversal of 13545020340 is 4302054531.

13545020340 is a `hidden beast` number, since 1 + 3 + 5 + 450 + 203 + 4 + 0 = 666.

It is a super-2 number, since 2×13545020340² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 387831 + ... + 421310.

It is an arithmetic number, because the mean of its divisors is an integer number (453119520).

Almost surely, 2^13545020340 is an apocalyptic number.

13545020340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13545020340 is an abundant number, since it is smaller than the sum of its proper divisors (29954453580).

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

13545020340 is a wasteful number, since it uses less digits than its factorization.

13545020340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809190 (or 809182 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 13545020340 its reverse (4302054531), we get a palindrome (17847074871).

The spelling of 13545020340 in words is "thirteen billion, five hundred forty-five million, twenty thousand, three hundred forty".