13156241380 has 12 divisors (see below), whose sum is σ = 27628106940. Its totient is φ = 5262496544.

The previous prime is 13156241377. The next prime is 13156241381. The reversal of 13156241380 is 8314265131.

It can be written as a sum of positive squares in 2 ways, for example, as 5317618084 + 7838623296 = 72922^2 + 88536^2 .

It is not an unprimeable number, because it can be changed into a prime (13156241381) 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, 328906015 + ... + 328906054.

It is an arithmetic number, because the mean of its divisors is an integer number (2302342245).

Almost surely, 2^13156241380 is an apocalyptic number.

13156241380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13156241380 is an abundant number, since it is smaller than the sum of its proper divisors (14471865560).

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

13156241380 is a wasteful number, since it uses less digits than its factorization.

13156241380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657812078 (or 657812076 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 13156241380 in words is "thirteen billion, one hundred fifty-six million, two hundred forty-one thousand, three hundred eighty".