136643316125 has 16 divisors (see below), whose sum is σ = 180562088304. Its totient is φ = 102884377600.

The previous prime is 136643316113. The next prime is 136643316133. The reversal of 136643316125 is 521613346631.

It can be written as a sum of positive squares in 8 ways, for example, as 26146243204 + 110497072921 = 161698^2 + 332411^2 .

It is not a de Polignac number, because 136643316125 - 2⁴ = 136643316109 is a prime.

It is a super-3 number, since 3×136643316125³ (a number of 34 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32149244 + ... + 32153493.

It is an arithmetic number, because the mean of its divisors is an integer number (11285130519).

Almost surely, 2^136643316125 is an apocalyptic number.

It is an amenable number.

136643316125 is a deficient number, since it is larger than the sum of its proper divisors (43918772179).

136643316125 is an equidigital number, since it uses as much as digits as its factorization.

136643316125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64302769 (or 64302759 counting only the distinct ones).

The product of its digits is 233280, while the sum is 41.

The spelling of 136643316125 in words is "one hundred thirty-six billion, six hundred forty-three million, three hundred sixteen thousand, one hundred twenty-five".