136643667325 has 24 divisors (see below), whose sum is σ = 187181412480. Its totient is φ = 98119257600.

The previous prime is 136643667319. The next prime is 136643667383. The reversal of 136643667325 is 523766346631.

It is not a de Polignac number, because 136643667325 - 2³¹ = 134496183677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3123124 + ... + 3166573.

It is an arithmetic number, because the mean of its divisors is an integer number (7799225520).

Almost surely, 2^136643667325 is an apocalyptic number.

It is an amenable number.

136643667325 is a deficient number, since it is larger than the sum of its proper divisors (50537745155).

136643667325 is a wasteful number, since it uses less digits than its factorization.

136643667325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6289797 (or 6289792 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 52.

The spelling of 136643667325 in words is "one hundred thirty-six billion, six hundred forty-three million, six hundred sixty-seven thousand, three hundred twenty-five".