13556134064 has 40 divisors (see below), whose sum is σ = 28666564032. Its totient is φ = 6158905920.

The previous prime is 13556134063. The next prime is 13556134069. The reversal of 13556134064 is 46043165531.

It is a super-2 number, since 2×13556134064² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13556134063) 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, 370247 + ... + 405209.

Almost surely, 2^13556134064 is an apocalyptic number.

It is an amenable number.

13556134064 is an abundant number, since it is smaller than the sum of its proper divisors (15110429968).

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

13556134064 is a wasteful number, since it uses less digits than its factorization.

13556134064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37185 (or 37179 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

Adding to 13556134064 its reverse (46043165531), we get a palindrome (59599299595).

The spelling of 13556134064 in words is "thirteen billion, five hundred fifty-six million, one hundred thirty-four thousand, sixty-four".