13085566064 has 40 divisors (see below), whose sum is σ = 26242360560. Its totient is φ = 6313599488.

The previous prime is 13085566051. The next prime is 13085566079. The reversal of 13085566064 is 46066558031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 933572 + ... + 947484.

It is an arithmetic number, because the mean of its divisors is an integer number (656059014).

Almost surely, 2^13085566064 is an apocalyptic number.

It is an amenable number.

13085566064 is an abundant number, since it is smaller than the sum of its proper divisors (13156794496).

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

13085566064 is a wasteful number, since it uses less digits than its factorization.

13085566064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15977 (or 15971 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 13085566064 in words is "thirteen billion, eighty-five million, five hundred sixty-six thousand, sixty-four".