136661233345 has 32 divisors (see below), whose sum is σ = 201864902400. Its totient is φ = 86490581760.

The previous prime is 136661233337. The next prime is 136661233351. The reversal of 136661233345 is 543332166631.

It is not a de Polignac number, because 136661233345 - 2³ = 136661233337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4580175 + ... + 4609915.

It is an arithmetic number, because the mean of its divisors is an integer number (6308278200).

Almost surely, 2^136661233345 is an apocalyptic number.

It is an amenable number.

136661233345 is a deficient number, since it is larger than the sum of its proper divisors (65203669055).

136661233345 is a wasteful number, since it uses less digits than its factorization.

136661233345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39865.

The product of its digits is 699840, while the sum is 43.

Adding to 136661233345 its reverse (543332166631), we get a palindrome (679993399976).

The spelling of 136661233345 in words is "one hundred thirty-six billion, six hundred sixty-one million, two hundred thirty-three thousand, three hundred forty-five".