13555612361 has 16 divisors (see below), whose sum is σ = 14174160000. Its totient is φ = 12947413248.

The previous prime is 13555612313. The next prime is 13555612379. The reversal of 13555612361 is 16321655531.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13555612361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13555612381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3872390 + ... + 3875888.

It is an arithmetic number, because the mean of its divisors is an integer number (885885000).

Almost surely, 2^13555612361 is an apocalyptic number.

It is an amenable number.

13555612361 is a deficient number, since it is larger than the sum of its proper divisors (618547639).

13555612361 is a wasteful number, since it uses less digits than its factorization.

13555612361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4928.

The product of its digits is 81000, while the sum is 38.

The spelling of 13555612361 in words is "thirteen billion, five hundred fifty-five million, six hundred twelve thousand, three hundred sixty-one".