136215005652 has 144 divisors (see below), whose sum is σ = 381249820224. Its totient is φ = 40663296000.

The previous prime is 136215005539. The next prime is 136215005747. The reversal of 136215005652 is 256500512631.

136215005652 is a `hidden beast` number, since 1 + 36 + 21 + 500 + 56 + 52 = 666.

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

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 47 ways as a sum of consecutive naturals, for example, 7660452 + ... + 7678212.

It is an arithmetic number, because the mean of its divisors is an integer number (2647568196).

Almost surely, 2^136215005652 is an apocalyptic number.

136215005652 is a gapful number since it is divisible by the number (12) 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 136215005652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190624910112).

136215005652 is an abundant number, since it is smaller than the sum of its proper divisors (245034814572).

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

136215005652 is a wasteful number, since it uses less digits than its factorization.

136215005652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18070 (or 18065 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 136215005652 in words is "one hundred thirty-six billion, two hundred fifteen million, five thousand, six hundred fifty-two".