136610253641 has 4 divisors (see below), whose sum is σ = 144646150932. Its totient is φ = 128574356352.

The previous prime is 136610253623. The next prime is 136610253653. The reversal of 136610253641 is 146352016631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52975927225 + 83634326416 = 230165^2 + 289196^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136610253641 is a prime.

It is a super-2 number, since 2×136610253641² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136610253595 and 136610253604.

It is not an unprimeable number, because it can be changed into a prime (136610256641) 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, 4017948620 + ... + 4017948653.

It is an arithmetic number, because the mean of its divisors is an integer number (36161537733).

Almost surely, 2^136610253641 is an apocalyptic number.

It is an amenable number.

136610253641 is a deficient number, since it is larger than the sum of its proper divisors (8035897291).

136610253641 is an equidigital number, since it uses as much as digits as its factorization.

136610253641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8035897290.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 136610253641 in words is "one hundred thirty-six billion, six hundred ten million, two hundred fifty-three thousand, six hundred forty-one".