136553234220 has 288 divisors, whose sum is σ = 470095726464. Its totient is φ = 31832064000.

The previous prime is 136553234203. The next prime is 136553234227. The reversal of 136553234220 is 22432355631.

136553234220 is a `hidden beast` number, since 1 + 3 + 65 + 532 + 3 + 42 + 20 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (136553234227) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5423260 + ... + 5448380.

It is an arithmetic number, because the mean of its divisors is an integer number (1632276828).

Almost surely, 2^136553234220 is an apocalyptic number.

136553234220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136553234220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235047863232).

136553234220 is an abundant number, since it is smaller than the sum of its proper divisors (333542492244).

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

136553234220 is a wasteful number, since it uses less digits than its factorization.

136553234220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25273 (or 25268 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 136553234220 its reverse (22432355631), we get a palindrome (158985589851).

The spelling of 136553234220 in words is "one hundred thirty-six billion, five hundred fifty-three million, two hundred thirty-four thousand, two hundred twenty".