13006191680 has 28 divisors (see below), whose sum is σ = 30970994700. Its totient is φ = 5202476544.

The previous prime is 13006191661. The next prime is 13006191689. The reversal of 13006191680 is 8619160031.

It can be written as a sum of positive squares in 2 ways, for example, as 6900957184 + 6105234496 = 83072^2 + 78136^2 .

It is a super-2 number, since 2×13006191680² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13006191680.

It is not an unprimeable number, because it can be changed into a prime (13006191689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20321855 + ... + 20322494.

Almost surely, 2^13006191680 is an apocalyptic number.

13006191680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13006191680 is an abundant number, since it is smaller than the sum of its proper divisors (17964803020).

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

13006191680 is an equidigital number, since it uses as much as digits as its factorization.

13006191680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40644366 (or 40644356 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 35.

The spelling of 13006191680 in words is "thirteen billion, six million, one hundred ninety-one thousand, six hundred eighty".