13058220688 has 20 divisors (see below), whose sum is σ = 26172727740. Its totient is φ = 6303968384.

The previous prime is 13058220677. The next prime is 13058220691. The reversal of 13058220688 is 88602285031.

It can be written as a sum of positive squares in 2 ways, for example, as 10640335104 + 2417885584 = 103152^2 + 49172^2 .

It is a super-2 number, since 2×13058220688² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14070895 + ... + 14071822.

It is an arithmetic number, because the mean of its divisors is an integer number (1308636387).

Almost surely, 2^13058220688 is an apocalyptic number.

It is an amenable number.

13058220688 is an abundant number, since it is smaller than the sum of its proper divisors (13114507052).

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

13058220688 is a wasteful number, since it uses less digits than its factorization.

13058220688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28142754 (or 28142748 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The spelling of 13058220688 in words is "thirteen billion, fifty-eight million, two hundred twenty thousand, six hundred eighty-eight".