8220333785 has 16 divisors (see below), whose sum is σ = 9929740800. Its totient is φ = 6532850880.

The previous prime is 8220333763. The next prime is 8220333787. The reversal of 8220333785 is 5873330228.

It is not a de Polignac number, because 8220333785 - 2¹⁸ = 8220071641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8220333787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 464204 + ... + 481586.

It is an arithmetic number, because the mean of its divisors is an integer number (620608800).

Almost surely, 2^8220333785 is an apocalyptic number.

It is an amenable number.

8220333785 is a deficient number, since it is larger than the sum of its proper divisors (1709407015).

8220333785 is a wasteful number, since it uses less digits than its factorization.

8220333785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18008.

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 8220333785 is about 90666.0564103237. The cubic root of 8220333785 is about 2018.1951156568.

The spelling of 8220333785 in words is "eight billion, two hundred twenty million, three hundred thirty-three thousand, seven hundred eighty-five".