136204072236 has 120 divisors (see below), whose sum is σ = 359914151520. Its totient is φ = 44912060928.

The previous prime is 136204072187. The next prime is 136204072237. The reversal of 136204072236 is 632270402631.

136204072236 is a `hidden beast` number, since 1 + 3 + 6 + 20 + 407 + 223 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 136204072236.

It is not an unprimeable number, because it can be changed into a prime (136204072237) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20389545 + ... + 20396223.

It is an arithmetic number, because the mean of its divisors is an integer number (2999284596).

Almost surely, 2^136204072236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136204072236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179957075760).

136204072236 is an abundant number, since it is smaller than the sum of its proper divisors (223710079284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136204072236 is a wasteful number, since it uses less digits than its factorization.

136204072236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7365 (or 7354 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

Adding to 136204072236 its reverse (632270402631), we get a palindrome (768474474867).

The spelling of 136204072236 in words is "one hundred thirty-six billion, two hundred four million, seventy-two thousand, two hundred thirty-six".