8206351636 has 54 divisors (see below), whose sum is σ = 17631467658. Its totient is φ = 3331873440.

The previous prime is 8206351633. The next prime is 8206351661. The reversal of 8206351636 is 6361536028.

It can be written as a sum of positive squares in only one way, i.e., 6799651600 + 1406700036 = 82460^2 + 37506^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8206351633) 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 17 ways as a sum of consecutive naturals, for example, 12766 + ... + 128746.

Almost surely, 2^8206351636 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 8206351636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8815733829).

8206351636 is an abundant number, since it is smaller than the sum of its proper divisors (9425116022).

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

8206351636 is a wasteful number, since it uses less digits than its factorization.

8206351636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116037 (or 116009 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 8206351636 is about 90588.9156354131. The cubic root of 8206351636 is about 2017.0502019194.

The spelling of 8206351636 in words is "eight billion, two hundred six million, three hundred fifty-one thousand, six hundred thirty-six".