13315555064 has 32 divisors (see below), whose sum is σ = 29071703520. Its totient is φ = 5598992256.

The previous prime is 13315555049. The next prime is 13315555067. The reversal of 13315555064 is 46055551331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13315555067) 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, 2240219 + ... + 2246154.

It is an arithmetic number, because the mean of its divisors is an integer number (908490735).

Almost surely, 2^13315555064 is an apocalyptic number.

13315555064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13315555064 is an abundant number, since it is smaller than the sum of its proper divisors (15756148456).

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

13315555064 is a wasteful number, since it uses less digits than its factorization.

13315555064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4486439 (or 4486435 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 38.

The spelling of 13315555064 in words is "thirteen billion, three hundred fifteen million, five hundred fifty-five thousand, sixty-four".