13155545064 has 64 divisors (see below), whose sum is σ = 35764718400. Its totient is φ = 4015678464.

The previous prime is 13155545059. The next prime is 13155545077. The reversal of 13155545064 is 46054555131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420634 + ... + 450825.

It is an arithmetic number, because the mean of its divisors is an integer number (558823725).

Almost surely, 2^13155545064 is an apocalyptic number.

It is an amenable number.

13155545064 is an abundant number, since it is smaller than the sum of its proper divisors (22609173336).

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

13155545064 is a wasteful number, since it uses less digits than its factorization.

13155545064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871522 (or 871518 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 13155545064 in words is "thirteen billion, one hundred fifty-five million, five hundred forty-five thousand, sixty-four".