13045502320 has 20 divisors (see below), whose sum is σ = 30330793080. Its totient is φ = 5218200896.

The previous prime is 13045502317. The next prime is 13045502333. The reversal of 13045502320 is 2320554031.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×13045502320² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81534310 + ... + 81534469.

It is an arithmetic number, because the mean of its divisors is an integer number (1516539654).

Almost surely, 2^13045502320 is an apocalyptic number.

13045502320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13045502320 is an abundant number, since it is smaller than the sum of its proper divisors (17285290760).

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

13045502320 is a wasteful number, since it uses less digits than its factorization.

13045502320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163068792 (or 163068786 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The spelling of 13045502320 in words is "thirteen billion, forty-five million, five hundred two thousand, three hundred twenty".