13505544546 has 64 divisors (see below), whose sum is σ = 30935856000. Its totient is φ = 3896211456.

The previous prime is 13505544523. The next prime is 13505544551. The reversal of 13505544546 is 64544550531.

It is a super-2 number, since 2×13505544546² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13505544498 and 13505544507.

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, 96780 + ... + 190728.

It is an arithmetic number, because the mean of its divisors is an integer number (483372750).

Almost surely, 2^13505544546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13505544546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15467928000).

13505544546 is an abundant number, since it is smaller than the sum of its proper divisors (17430311454).

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

13505544546 is a wasteful number, since it uses less digits than its factorization.

13505544546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94083.

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 13505544546 in words is "thirteen billion, five hundred five million, five hundred forty-four thousand, five hundred forty-six".