236540213316 has 81 divisors (see below), whose sum is σ = 657308253693. Its totient is φ = 71669125440.

The previous prime is 236540213303. The next prime is 236540213317. The reversal of 236540213316 is 613312045632.

The square root of 236540213316 is 486354.

It is a perfect power (a square), and thus also a powerful number.

236540213316 is a `hidden beast` number, since 236 + 5 + 402 + 1 + 3 + 3 + 16 = 666.

It can be written as a sum of positive squares in only one way, i.e., 218412283716 + 18127929600 = 467346^2 + 134640^2 .

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 (236540213317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 32095680 + ... + 32103048.

Almost surely, 2^236540213316 is an apocalyptic number.

236540213316 is the 486354-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 236540213316

236540213316 is an abundant number, since it is smaller than the sum of its proper divisors (420768040377).

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

236540213316 is an equidigital number, since it uses as much as digits as its factorization.

236540213316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14770 (or 7385 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Multiplying 236540213316 by its sum of digits (36), we get a square (8515447679376 = 2918124²).

236540213316 divided by its sum of digits (36) gives a square (6570561481 = 81059²).

Adding to 236540213316 its reverse (613312045632), we get a palindrome (849852258948).

The spelling of 236540213316 in words is "two hundred thirty-six billion, five hundred forty million, two hundred thirteen thousand, three hundred sixteen".