4785166221 has 8 divisors (see below), whose sum is σ = 6960241824. Its totient is φ = 2900100720.

The previous prime is 4785166193. The next prime is 4785166241. The reversal of 4785166221 is 1226615874.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4785166221 - 2⁵ = 4785166189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4785166241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72502486 + ... + 72502551.

It is an arithmetic number, because the mean of its divisors is an integer number (870030228).

Almost surely, 2^4785166221 is an apocalyptic number.

It is an amenable number.

4785166221 is a deficient number, since it is larger than the sum of its proper divisors (2175075603).

4785166221 is a wasteful number, since it uses less digits than its factorization.

4785166221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145005051.

The product of its digits is 161280, while the sum is 42.

The square root of 4785166221 is about 69174.8958871642. The cubic root of 4785166221 is about 1685.1258578105.

The spelling of 4785166221 in words is "four billion, seven hundred eighty-five million, one hundred sixty-six thousand, two hundred twenty-one".