8361650520 has 128 divisors (see below), whose sum is σ = 28033905600. Its totient is φ = 2216835072.

The previous prime is 8361650509. The next prime is 8361650581. The reversal of 8361650520 is 250561638.

8361650520 is a `hidden beast` number, since 83 + 6 + 1 + 6 + 50 + 520 = 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 polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164464 + ... + 209216.

Almost surely, 2^8361650520 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 8361650520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14016952800).

8361650520 is an abundant number, since it is smaller than the sum of its proper divisors (19672255080).

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

8361650520 is a wasteful number, since it uses less digits than its factorization.

8361650520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44946 (or 44936 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 8361650520 is about 91442.0610003952. The cubic root of 8361650520 is about 2029.6944802975.

The spelling of 8361650520 in words is "eight billion, three hundred sixty-one million, six hundred fifty thousand, five hundred twenty".