8220573036 has 90 divisors (see below), whose sum is σ = 23270610132. Its totient is φ = 2529390240.

The previous prime is 8220573029. The next prime is 8220573061. The reversal of 8220573036 is 6303750228.

8220573036 is a `hidden beast` number, since 82 + 2 + 0 + 573 + 0 + 3 + 6 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 20310 + ... + 129821.

Almost surely, 2^8220573036 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 8220573036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11635305066).

8220573036 is an abundant number, since it is smaller than the sum of its proper divisors (15050037096).

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

8220573036 is a wasteful number, since it uses less digits than its factorization.

8220573036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150173 (or 150149 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 8220573036 is about 90667.3758085013. The cubic root of 8220573036 is about 2018.2146951746.

The spelling of 8220573036 in words is "eight billion, two hundred twenty million, five hundred seventy-three thousand, thirty-six".