13545561336 has 32 divisors (see below), whose sum is σ = 33937071360. Its totient is φ = 4505431392.

The previous prime is 13545561331. The next prime is 13545561347. The reversal of 13545561336 is 63316554531.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13545561331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 598390 + ... + 620613.

It is an arithmetic number, because the mean of its divisors is an integer number (1060533480).

Almost surely, 2^13545561336 is an apocalyptic number.

It is an amenable number.

13545561336 is an abundant number, since it is smaller than the sum of its proper divisors (20391510024).

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

13545561336 is a wasteful number, since it uses less digits than its factorization.

13545561336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219475 (or 1219471 counting only the distinct ones).

The product of its digits is 486000, while the sum is 42.

The spelling of 13545561336 in words is "thirteen billion, five hundred forty-five million, five hundred sixty-one thousand, three hundred thirty-six".