13557140681 has 8 divisors (see below), whose sum is σ = 15572525760. Its totient is φ = 11561418288.

The previous prime is 13557140669. The next prime is 13557140683. The reversal of 13557140681 is 18604175531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13557140681 - 2⁶ = 13557140617 is a prime.

It is a super-2 number, since 2×13557140681² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13557140683) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4914191 + ... + 4916948.

It is an arithmetic number, because the mean of its divisors is an integer number (1946565720).

Almost surely, 2^13557140681 is an apocalyptic number.

It is an amenable number.

13557140681 is a deficient number, since it is larger than the sum of its proper divisors (2015385079).

13557140681 is an equidigital number, since it uses as much as digits as its factorization.

13557140681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9831343.

The product of its (nonzero) digits is 100800, while the sum is 41.

The spelling of 13557140681 in words is "thirteen billion, five hundred fifty-seven million, one hundred forty thousand, six hundred eighty-one".