136604623205 has 16 divisors (see below), whose sum is σ = 164517176304. Its totient is φ = 108889697280.

The previous prime is 136604623153. The next prime is 136604623217. The reversal of 136604623205 is 502326406631.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 11502348001 + 125102275204 = 107249^2 + 353698^2 .

It is a de Polignac number, because none of the positive numbers 2^k-136604623205 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2692775 + ... + 2743035.

It is an arithmetic number, because the mean of its divisors is an integer number (10282323519).

Almost surely, 2^136604623205 is an apocalyptic number.

It is an amenable number.

136604623205 is a deficient number, since it is larger than the sum of its proper divisors (27912553099).

136604623205 is a wasteful number, since it uses less digits than its factorization.

136604623205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52216.

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 136604623205 in words is "one hundred thirty-six billion, six hundred four million, six hundred twenty-three thousand, two hundred five".